HomeMy Public PortalAboutORD06543 gum
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City of Jefferson, Missouri, relative to said kind of work and in
accordance with the Charter of said City in regard to said work.
Section 5 . This ordinance shall take effect and be in force from
and after its passage and approval.
Passed: 12/2157 Approved: 12/11/57
Arthur W. Ellis /s/ Arthur W. Ellis /s/
President of the Council Mayor
ORDINANCE NO. 6543
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Passed: 12/2/57 Approved: 12/11/57
Arthur W. Ellis /sl Arthur W. Ellis /s/
President of the Council Mayor
Attest:
Henry W. Ells Isl
City Clerk
ORDINANCE NO. 6143
AN ORDINANCE REGULATING AND CONTROLLING
1 THE PLUMBING TRADE WITHIN THE CITY OF
JEFFERSON, MISSOURI, TO BE KNOWN AS THE s
PLUMBING CODE OF THE CITY OF JEFFERSON,
MISSOURI: PROVIDING A PENALTY FOR VIOLA-
TIONS THEREOF; AND REPEALING ALL ORDINANCES
OR PARTS OF ORDINANCES IN CONFLICT HEREWITH.
{ BE IT ORDAINED BY THE CITY COUNCIL OF THE
(: CITY OF JEFFERSON, MISSOURI, AS FOLLOWS: f
Page
Chapter 1 TITLE AND SCOPE ..... 1
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Chapter 2 DEFINITIONS i
Chapter 3 GENERAL REGULATIONS,.................... 7
Chapter 4 MATERIAL--QUALITY AND WEIGHT............ 9 (i
Chapter b JOINTS AND CONNECTIONS.................. 11
Chapter 6 TRAPS AND CLEANOUTS..................... 13 1
Chapter 7 INTERCEPTORS............................ is
1 Chapter 8 PLUMBING FIXTURES....................... 17
Chapter 9 HANGERS AND SUPPORTS.................... 20
Chapter 10 INDIRECT WASTE. PIPE..................... 21
Chapter 11 WATER SUPPLY AND DISTRIBUTION........... 22
Chapter 12 DRAINAGE SYSTEM......................... 27
hapter 13 VENTS AND VENTING....................... 31
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CHAPTER 1
} TITLE AND SCOPE
1 1.1 This ordinance shall be known as the Plumbing, Code
s of the City of Jefferson, may be so cited, and will be refer- j
red to in this ordinance as this code. The administration and
's enforcement of this ordinance shall be the duty of the Plumbing i
Inspector, of the City of Jefferson, who is hereby authorized
to take such action as may be reasonably necessary to enforce
the purpose of this ordinance. Such person or persons may be
appointed and authorized as assistants or agents of such adm-
inistrative authority as may be necessary to carry out the
provisions of this ordinance.
1.2 The provisi6ns of this code shall apply to and govern
plumbing as defined in this code, including the practice, mater-
ials, and fixtures used in the installation, maintenance, exten-
sion, and alteration of all piping, fixtures, appliances, and
appurtenances in connection with any of the following.: Sanitary
drainage facilities, the ventinF system, and the public or
�t private water supply systems within or adjacent to any building
or other structure, or conveyance; also the practice and mater-
ials used in the installation, maintenance, extension, or alter-
atibn of the sewerage system of any premises to their connect-
ton with any point of public disposal or other terminal. j
CHAPTEF 2
DEFINITIONS j
2.1 General
2.1.1 For the purpose of this code, the following terms
shall have the meaninF indicated in this chapter.
2.1.2 No attempt is made to define ordinary words which
are used in accordance with their established dictionary mean-
ing except where the word has been loosely used and it is nec-
essary to define its meaning as used in this code to avoid
j: misunderstanding.
a
4j 2.2 Definition of terms,
n Administrative authorit .--The administrative authority
R is the individual o c a , oard, department, or agency est-
ablished and authorized by a State, county, city, or other
4 political subdivision created by law to administer and enforce i
} the provisions of the plumbing code as adopted or amended., 1
Air eap6--An air gap in a water-supply system is the n-
obstruc a vertical distance through the free atmosphere between
the lowest opening from any pipe or faucet supplying water to a
' tank, plumbing, fixture, or other device and the flood-level rim I
of the receptacle.
Approved.--Approved means accepted or acceptable under an
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applicatle specification stated, or cited in this code, or
f; accepted,as suitable for the proposed use under procedures and
jf powers of the administrative authority.
Area drain.--An area drain is a receptable designed to col-
loot sur ace or rain water from an open area.
Backflow.--Backflow is the flow of water or other liquids,
X mixtures, or substances into the distributing pipes of a potable
supply of water from any source or sources other than its in-
tended source. (See Backsiphonage.)
Backflow connection.--Backflow connection or condition is
any arrangement were y Backflow can occur.
j Backflow reventer.--A backflow preventer is a device or
means to prevent Sa=ow into the potable water system.
flack-siphon.--Back-aiphonage is the flowing back of
used, con am na e , or polluted water from a plumbing fixture
1 or vessel into a water-supply pipe due to a negative pressure
In auch pipe. (See Backflow.)
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Batter of fixtures.--A "battery of fixtures" is any group
of two o more a m ar- adjacent fixtures which discharge into
a common horizontal wants or soil branch.
Boller blow-off.--A boiler blow-off is an outlet on a boiler
to permit amp y ng or discharge of sediment.
Branoh.--A branch is any part of the piping system other
than as main ,n riser, or stack, t
Branch fixture.--See Fixture Branch. t
Branch! horizontal.--See Horizontal Branch.
branch, in erv�ai.--A branch interval is a length of soil
or waste stack corresponding in General to a story height, but
in no case less than 8 feet, within which the horizontal branches
from one floor or story of it building are connected to the stack.
i Branch vent.--A branch vent is a vent connecting one or
more Individual vents with a vent stack or stack vent.
Building.--A building is a structure built, erected, and
frames o aomponent structural parts designed for the housing,
shelter, enclosure, or support of persons, animals, or property
of any kind.
Building drain.--The building (house) drain Is that part
of the owes ping of a drainage system which receives the
discharge from soil, waste, and other drainage pipes inside the
f walla of the building and conveys it to the building (house)
sewer beginning 3 feet outside the building wall.
Buildin sewer.--The building (house) newer is that part
of the or zon a piping of a drainage system which extends
from the end of the building drain and which receives the dis-
charge of the building drain and conveys it to a public sewer,
private newer, individual sewage-disposal system, or other
point of disposal.
Building storm drain.--A building (house) storm drain is
a buildinng r—sins used for conveying rain water, surface water,
ground water, sub-surface water, condensate, cooling water, or
other similar discharge to a building storm sewer or a combined
building sewer, extending to a point not lees than 3 feet out-
side the building wall.
Buildin storm sewer.--A building (house) storm sewer is
the exx enm tne building storm drain to the public storm
sewer, combined sewer, or other point of disposal.
Buildin subdrain.--A building (house) subdrain is that
portion o a ra Wage system which cannot drain by gravity
into the building sewer.
Circuit vent.--A circuit vent is a branch vent that serves
two or more rape and extends from in front of the last fixture
connection of a horizontal branch to the vent stack.
Code.--The word "code" when used alone shall mean these
regula£iona, subsequent amendments thereto, or any emergency
rule or regulation which the administrative authority having
jurisdiction may lawfully adopt.
Combination fixture.--A combination fixture is a fixture
combining one a an ray or a two-or-three compartment sink
or tray in one unit.
Combined building sewer.--A combined building sewer receives
storm water and aewage. '
Combination waste and vent a stem.--A combination waste
and vent system e a specially ee gne system of waste piping
embodying the horizontal wet venting of one or more sinks or
floor drains by means of a common waste and vent pipe adequately
i sized to provide free movement of air above the flow line of
the drain.
Common vent.--A common vent is a vent connecting at the
Junction or two f lxture drains and serving as a vent for both
fixtures.
Conductor.--See Leader.
,o7 ntinoue`vant.--A continuous vent is a vertical vent that
Is a continuation of the drain to which it connects.
Continuous waste.--A continuous waste is a drain from two
or three fixtures connected to a single trap.
Cross-connection.--A cross-connection is any physical conn-
ection or arrangement etween two otherwise separate piping eye-
tame, one of which contains potable water and the other water of
unknown or questionable safety, whereby water may flow from one
system to the other, the direction of flow depending on the
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pressure differential between the two systems. (See Backflow
and Sack-Siphonage.)
Dead end.--A dead end is a branch leading from a 'Boil,
waste, or veRT pipe, building drain, or building Bower, which
ie terminated at a developed distance of 2 feet or more by
means of a plug or other closed fitting.
Developed len th.--The developed length of a pipe is-Ito
length along the cen.er line of the pipe and fittings.
Diameter.--Unless specifically stated, the term "diameter"
is the nom Tna diameter as designated commercially. }
Double offset.--A double offset is two changes of direction
installed in succession or series in continuous pipe.
Downspout.--See Deader.
rai5—fin,-- -drain is any pipe which carries waste water or
water--Borne wastes in a building drainage system.
Drains e system.--A drainage system (drainage piping) in-
cludea a e piping within public or private premises, which
conveys sewage, rain water, or other liquid wastes to a legal
point of disposal, but does not include the mains of a public
or private or public sewage-treatment or dispoaal plant.
Dual vent.--See common Vent.
Durham a stem.--Durham system is a term used to describe
soil or waste systems where all piping is of threaded pipe,
tubing, or other such rigid construction, using recessed drain-
age fittings to correspond to the types of piping.
Effective o enin .--The effective opening is the minimum
arose-sec one. area a the point of water-supply discharge,
measured or expressed in terma•of (1) diameter of a circle,
(2) if the opening is not circular, the diameter of a circle
of equivalent cross-sectional area. (This is applicable to
air gap.)
Exiatin work.--Existing work is a plumbing system or any
part ereo which has been installed prior to the effective
date of this code.
Fixture branch.--A fixture branch is a pipe connecting
several fixtures.
Fixture drain.--A fixture drain is the drain from the
trap of a x ure o the function of that drain with any other
drain pipe.
Fixture supply.--A fixture supply is a water-supply pipe-
eonneoting the .future with the fixture branch
Fixture unit.--A fixture unit is a quantity in terms of
which the-load-producing effects on the plumbing system of dif-
ferent kinds of plumbing fixtures are expressed on some arbitr-
arily chosen scale.
i Fixture-unit flow rate.--Fixture-unit flow rate is the
i total sc arge ow n g.p.m. of a single fixture divided by
7.5 which provides the flow rate of that particular plumbing
fixture as a unit of flow. Fixtures are rated as multiples
of this unit of flow.
Flood level.--See Flooded.
Flood-level rim.--The flood-level rim is the top edge of
the recep ace rom w ioh water overflows. j
Flooded.--A fixture is flooded when the liquid therein i
1, rises o ie flood-level rim.
Flush valves.--A flush valve is a device located at the
tank for the purpose of flushing water closets and similar
fixtures.
Flushometer valve.-- A flushometer valve is a device which
discharges a pre a e m ned quantity of water to fixtures for
flushing purposes and is actuated by direct water pressure.
Frostproof closet.--A frostproof closet is a hopper that
has noer n the owl and has the trap and the control valve
for its water supply installed below the froatr'lins.
Grade.--Grade is the slope or fall of a line of pipe in
reference to a horizontal plane. In drainage it is usually
expressed as the fall in a fraction of an inch per foot length
of pipe.
Grease intercetor.--See Interceptor.
reuse trap.--see interceptor.
an ers.-- ee Supports.
or ion al branch.--A horizontal branch is a drain pipe
exten ng a era y rom a soil or waste stack or building drain,
with or without vertical sections or branches, which receives
the discharge from one or more fixture drains and donducts it
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rr to the @oil or waste stack or to the building (house) drain.
Horizontal �i e.--A horizontal pipe is any pipe or fitting
which'ie ne a e d In a horizontal position or which makes an
angle of lees than 45'with the horizontal.
House drain.--See Building Drain. j
House new'er.--See Building, Sewer.
Ho
use See Building Trap.
n rT 3i ect waste i e.--An indirect waste pipe is a pipe
that To-e-a-EBT—connect directly with the drainage system but
conveys liquid wastes by discharging into a plumbing fixture
or receptacle which is directly connected to the drainage sys-
tem.
Individual vent.--An individual vent is a pipe installed
to vent a fixture frap and which connects with the vent system
j above the fixture served or terminates in the open air.
Industrial wastes.--Industrial wastes are liquid wastes
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resultinF rrom the processes employed in industrial establish-
menta and are free of fecal matter.
insanitar .--Contrary to sanitary principles--injurious
to health.
Interceptor.--An interceptor is a device designed and in-
s stalls so as to separate and retain deleterious, hazardous,
or undesirable matter from normal wastes and permit normal sew-
age or liquid wastes to discharge into the disposal terminal by
gravity. ;
Leader.--A leader (downspout) is the water conductor from +
the roof o the building storm drain, combined building newer,
or other means of disposal.
Li2uid waste.--Liquid waste is the discharge from any fix-
ture, appl and,or appurtenance, in connection with a plumbing
system which does not receive fecal matter.
Load factor.Load factor is the percentage of the total con- !
nected fixture unit flow rate which is likely to occur at any
point in the drainage system. It varies with.the type of occu-
pancy, the total flow unit above this point being considered, i
and with the probability factor of simultaneous use. ?
} Local ventilatin i e.--A local ventilating pipe is a pipe
on the fixture a e o e rap through which vapor or foul air
J is removed from a room or fixture.
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Loop vent.--A loop vent is the same as a circuit vent ex-
cept that oops back and connects with a stack vent instead
of a vent stack.
Main.--The main of any system of continuous piping is the
princ ppa�artery of the system, to which branches may be conn-
ected.
4 Main sewer.--See Public Server.
Main ve c:--The main vent is the principal artery of the
venting sys em, to which vent branches may be connected.
Ma --The word "may" is a permissive term.
et.--An offset in a line of piping is a combination of S
elbowa`or=ends which brings one section of the pipe out of line
! but into a line parallel with the other section.
Parson.--Parson is a natural person, his heirs, executors,
adman aiors, or assigns; and includes a firm, partnership or
corporation,its or their successors or assigns. Singular in- }
cludes plural; male includes female, i
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Pitch.--See .Grade,__ _
Page 4 of technical section. Add to definintion of
Plumbing the following: ,t
Plumbing shall not include the practice of installing
rental water softener conditioning equipment, provided that
the aforementioned installation shall be inspected by the '
Plumbing Tnspector.
' Rlumbin " fixtures
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oeptacles, ev cea, or appliances which are supplied with water
or which receive or discharge liquids or liquid-borne waetee,
with or without discharge into the drainage. system with which
they may be directly or indirectly connected.
Plumbing inspector.--See Administrative authority.
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Plumbing a stem.--Tho plumbing eyetem includes the wateru
supply a—nda��tTon pipes; plumbing fixtures and traps;
soil, waste, and vent pipes; building drains and building sewers
t Including their respective connections, devices, and appurten-
ances within the property lines of the premises, and water-treat-
ing or water-using equipment.
Pool.--A pool is a water receptacle used for swimming or
as a p3ungs or other bath, designed to accommodate rlore than
one bather at a time.
r Potable water.Potable water is water which is satisfactory
for drinking, cu rnnary and domestic purposes, and meets the
requirements of the health authority having jurisdiction.
Private or pr i ate use.--In the classification of plumbing
fixtureeprivate apn ee o fixtures in residences and apart-
ments and to fixtures in private bathrooms of hotels and similar
installations where the fixtures are intended for the use of a
family or an individual.
5 Private sewer.--A private sewer is a sewer privately own-
= ed and not directf-y controlled by public authority.
Public or public use.--In the classification of plumbing
fixtures, public or public use includes all fixtures except
those intended for the use of a family or individual as in a
private home or apartment. It includes fixtures in hotels,
hospitals, physicians,offices, schools, gymnasiums, transport-
= ation terminals, bare, public comfort stations, rest rooms or
}i any place to which the public is invited or which are frequented
by the public without special permission or invitation and other
Installations where a fixture or a number of fixtures is install- i
ed so that their use is similiarly unrestricted.
Public official.--See Administrative authority.
c sewer.--A public sewer is a common sewer directly
controlled y public authority.
Relief vent.A relief vent is a vent the primary function
of which- to provide circulation of air between drainage and
vent systems. '
Return offset.--A return offset is a double offset In-
stalled so as to return the pipe to its original alinement.
Rovent i e.--A revent pipe (sometimes called an individ-
ual van s part of a vent pipe line which connects direct-
; ly with an individual waste or group' of wastes, underneath or j
back of the fixture, and extends .either to the awin or branch
,rent pipe. +
Rim.--A rim is an•unobatructed open edge of a fixture.
r Riser.--A riser is a water-supply pipe which extends verti-
cally one=Tull story or more to convey water to branches or
j fixtures.
Roof drain.--A roof drain is a drain installed to receive
water co ec ng on the surface of a roof and to discharge it
into the leadsr (downspout).
Rou hin �in.Roughing=in is' the installation of all parts
of the p um ng eyetem which can be completed prior to the in-
Z stallation of fixtures. This includes drainage, water-supply,
s and vent piping, and the necessary fixture supports.
Sand interceptor.--See Interceptor.
R•an a sewer.--A sanitary sewer is a pipe which carries
senato an exc u ea storm, surface, and ground water.
r Second hand.Second hand as applied to material or plumbing
?: equipmenb a that which haa'been inst411ed, and has been used,
i. removed, and passed to another ownership or possession.
Se orator.--See.Interceptor.
Rye ' c� . -A septic tank is a watertight receptacle
is which receives e discharge of a drainage system or part there-
T. and is designed and constructed so as to separate solids
f) from the liquid, digest organic matter through a period of
1! detention, and allow the liquids to discharge into the soil out-
x; aide of the tank.through a system of open-point or perforated
piping, or dispoeal,pit.
Sawa e.--Sewage is any liquid waste containing animal or
vegeta a matter in suspension or solution and may include
liquids containing chemicals in solution.
r„ Shall.--The word "shall" is a mandatory term.
9de vent.--A side vent is a vent connecting to the drain
pipe row uRTa fitting at an angle not greater than 45'to the
vertical.
Size of i i and tubing.--See Diameter.
jl �o a...-- oe rai e.
f �oi��i�e._--A soil pipe is any pipe which conveys the die-
charge of water closets, urinals, or fixtures having similar
functions, with or without the discharge from other fixtures, k
to the building drain or building sewer.
Soil vent.--See Stack-vent.
Special waste i e.--See chapter 10. j
.. act.-- a act s the vertical main of a system of soil,
waste, or vent piping. r
Stack group.--Stack group Is a term applied to the location
of fixtures in relation to the stack so that by means of proper
fittings, vents mayy be reduced to a minimum.
Stack-vent.--A stack-vent (sometimes called a waste vent !
or noll vent) is the extension of a soil or waste stack above ;
j the highest horizontal.drain connected to the stack.
fI Stack ven --Stack venting is a method of venting, a
fixture or x t!urea through the soil or waste stack.
Storm drain.--See Building storm drain,.
gForm storm sewer is a sewer used for conveying
rain water, s usce water, condensate, cooling, water, or similar
liquid wastes, exclusive of sewage and industrial waste.
Subsoil drain.--A subsoil drain is a drain which receives !
only sub-surface or seepage water and conveys it to a place of
disposal.
Sump.--A sump is a tank or pit which receives sewage or
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liqui wasta, located below the normal grade of the gravity
system and which must be emptied by mechanical means.
Su orta --Supports, hangers, and anchors are devices for
suppor ng an: securing pipe and fixtures to walls, ceilings,
floors, or structural members.
Trap.--A trap is a fitting or device so designed and con-
! strucs to provide, when properly vented, a liquid seal
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which will prevent the back passage or air without materially i
affecting the flow of sewage or waste water through it.
Trap eal.--The trap seal is the maximum vertical depth of
liquid hat a trap will retain, measured between the crown weir
and the top of the dip of the trap.
Vacuum breaker.--See Backflow preventer.
�et f ee..-- ee Vent system.
I e�n- oTt.--A vent stack is a vertical vent pipe installed ;
primer y or a purpose of providing circulation of air to and i
I{ from any part of the drainage system.
Vent eystem�.--A vent system is a pipe or pipes installed to ;
provi ed a Mw o3' air to or from a drainage system or to provide
a circulation of air within such system to protect trap seals 1
from siphonape and back pressure.
Vertical i e.--A vertical pipe is any pipe or fitting which
is ins a e n a vertical position or which makes an angle of
not more than•45'with the vertical. i
Waste.--See Liquid waste and industrial wastes.
aVTaf-e-ppee..--A waste pipe is a pipe which conveys only j
liqui wn3 sie,—f-roe of fecal matter.
Water-distributing Pi Pe.--A water-distributing pipe in a
building or promises is e which conveys water from the
water-service pipe to the plumbing fixtures and other water out-
late.
Water main.--The water (street) main is a water-supply pipe
for pu a or community use.
Water outlet.--A water outlet, as used in connection with 't
the water-distrlbUting system, is the discharge opening for the
water (1) to a fixture; (2) to atmospheric pressure (except into E
an open tank which is part of the water-aunply system); (3) to
a boiler or heating system; (4) to any water-operated device or
equipment requiring water to operate, but not a part of the
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plumbing system.
Water riser pipe.--See Riser.
Wad r-service p pe.--The water-service pipe is the pipe ;
i from the water main or other source of water supply to the
building served.
Water-eu 1 s stem.--The water-supply system of a build-
ing, or pram sea cone a a of the water-service pipe, the water-
distributing pipes, and the necessary connecting, pipes, fittings,
control valves, and all appurtenances in or adjacent to the
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building or promisee. i
We vent.--A wet vent is a vent which receives the dia- ,
charge room waetee other than water closets.
1 Yoke vent.--A yoke vent is a pipe connecting, upward from
a soil or wad stack to a vent stack for the purpose of pre- t.
venting pressure chanpes in the stacks.
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CHAP'L'ET? 3
GFNF.RAI. REOULATIONS
3.1 Conformance with code.
3.l.l-p uI Yrip systems hereafter installed shall con-
form at least with+ the provisions of this code.
3.2 tirade of horizontal drsina :e i in .
3.2.1 Horizontal ra nape p P tip s a e run in practical
alinemeht at a uniform grade. (See Sec. 12.3 for specific
elopes.)
3.3 Charge in direction.
3.3.1 t'nt'ngs�.-- anges in direction in drainage piping
shall be made r t e appropriate use of 45'Y's, long-or-short-
sweep quarter bends, sixth, eighth, or sixteenth bends, or by
} a combination of these or equivalent fittings. Single and
double sanitary T's and quarter bends may be used in drainage
lines only where the direction of flow is from the horizontal
to the vertical.
3.4 Fitti a and connection,.
3.4.1 nRa ro�te�.. - o fitting having a hub in
( the direction opposite o fl w, or T branch shall be used as
a drainage fitting. No running threads,.bands, or saddles
shall be used in the drainage system. No drainage or vent pip-
ing shall be drilled or tapped.
3 3.4.2 Heel or side-inlet bend.--A heel or aide-inlet
quarter ben s e o e use as a vent when the inlet is
placed in a horizontal position.
3.4.3 Obstruction to flow.--No fitting, connection, device,
�. or method of n,ta at.on w c obstructs or retards the flow
of water, wastes, sewage, or air in the drainage or venting
systems in an amount greater than the normal frictional resist-
ante to flow, shall be used unless it is-indicated as acceptable
in this code- or is approved by the administrative authority as
having a desirable and acceptable function and as of ultimate
y benefit to the proper and continuing- functioning of the plumb-
4 Ing system. The enlargement of a' 3-inch closet bend or stub to I
4 inches shall not be considered an obstruction.
3.5 Repairs and alterations.
3.5.1 Existin �uiT31n s.--in existing buildings or pre-
? miaea in whir p um ng na a lations are to be altered, repair-
ed, or renovated, deviations from the provisions of this code
i are permitted•, provided such deviations are,found to be necessary,
+ conform to the intent of this code, and are approved in writing
by the administrative authority.
3.5.2 Health or safet -liherever compliance with all the
i provisions o t s coo e iraa to eliminate or alleviate a nuis-
ance which may involve health or safety hazards, the owner or
his agent shall install such additional pluml:ing or drainage
equipment as may be found necessary by the administrative auth-
} ority.
3.6 Sewer and water i ea.
3.6.1 Water sery ce p pes, or any underground water pipes,
shall not be run or laid in the same trench as the building
sewer or drainage piping, except as provided for in chapters
11 and 12.
3.7 Trenchi excavation and backfill.
3.7.1 u e n - ur e p ping shall be supported
throughut s en r
eng
3.7.2 Tunnelinp and drivin .--Tunnelinp may be done in
yards, courts;or r. veways o any building site, ,'then pipes
are driven, the drive pipe shall be at least one size larger
than the pipe to be laid.
3.7.3 Open trenches.--All excavations required to be made
for the installation o a buildinp-drai.nape system, or any part
thereof within the walls of a building, shall be open trench
work and shall be kept open until the piping has been inspected,
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Itented, and accepted.
3.7.4 Backfilliw.--Adequate precaution shall be. taken to
insure proper compactness of backfill around piping without
damape to such piping.
3.7.5 Backfill material.--Trenches shall be backfilled in w
thin layers to 12 inches—a-B—ove the top of.the piping with clean t
earth which.shall. not contain stones, boulders, cinder-fill, or
other materials which would damage or break the piping or cause
corrosive action. Fill shall be properly compacted.
3.8 Structural e__a�ro_�t.y*
3.8.1•.n Fe procosa� installing or repairing any part
of a plumbing and drainape'installation, the finished floors,
walls, ceilings, tile work, or any other part of the building
or premises which must be changed or replaced shall be left
In a safe structural condition as determined by the proper adm-
inistrative authority.
3.9, Workmanship.
3.9.1 WorM—mriah1p shall conform to generally accepted good
vractice.
3.10 Protection of i os.
3.10.1 Breaks we an corrosion.--riper reveing under or
through walls snail e protector] rrom breakage. Pipes passing
through or under cinder or concrete or other corrosive material,
shall b6 protected against external corrosion by protective
coating, wrapping, or other means which will prevent such corros-
ion. {
3.10.2 rutting or notching No structural member shall be
weakened or impaired by c—cuttinor, notching, or otherwise, except
to the extent permitted by the proper administrative authority.
3.10.3 Pi es throu h footin a or foundations walls.••-A,soi 7.
or waste pipe, or u ng ra n pass ng under R oo ng or
i through a foundation wall shall be provided with a relieving
arch; or there shall be built into the masonry wall an iron-pipe
sleeve two pipe sizes greater than the pipe passing through or
equivalent protection shall be provided as may be approved in
writing by the administrative authority.
3.10.4 F_reezink.--No water, soil, or waste pipe shall be
installed or pe— _M r� d outside of a building or in an exterior
wall unless adequate provision is made to protect such pipe
from freezing where necessary.
3.11 Damage to draina.e a stem or ublic sewer.
3.11.1 s a le un aw u or any person so deposit by
any means into the building drainape system or aewer-any ashes;
cinders; rags; inflammable,•poisonous, or explosive liquids;
Rases; oils; grease; or any other material which would or could
obstruct, damage, or overload such system or sewer.
3.12 Industrial wastes.
2.12.1 Wastes e r men.al to the public newer system or
detrimental to the functioning of the sewage-treatment plant
shall be treated and disposed of as found necessary and directed
by the administrative authority or other authority having juris-
diction.
3.13 Sleeves.
3.13.1 nnu ar space between sleeves and pipes shall be
filled or tightly calked with coal tar or asphaltum compound,
lead, or other material found equally effective and approved
as such by the administrative authority.
3.14 Ratvroofin .
x.14.1 x er or o enin s.--All exterior openings provided
for the passage o p ping s a l be properly sealed with snugly
1 fitting collars of metal or other approved ratproof material
securely fastened into place.
3.14.2 Interior o enin p--Interior openings through walls,
floors, and ceiT ngs a all-b—a ratproofed as- found necessary by
the administrative authority.
3.15 Used or second-hand a ui meht.
3.1F.1 shall e unlawful o purc ase, sell, 6r install
used equipment or material for plumbing installation unless it j
complies with the minimum standards set forth in this Code.
3.16 rondemned uinment.
?.16.1 Any p um .a np equ pment condemned by the ddminia-
trative authority because of wear, damage, defects, or sani-
tary hazards, shall not be reused for plumbing purposes. i
ervice (outside
3.17 Depth of building sewer and water s
S '
of buildin .
;5 17 Sewers and water-service piping shall be installed
below the recorded front penetration, but in no case lees than
p 2 feet 0 inches for newer and P. feet 6 inches for water piping
! below grade.
! 3.18 Pi in in relation to footin e.
3.18.1 are a ,-- o piping e a o laid parallel to foot-
ings or outs a oar ng walls closer than 3 feet, except an may
be approved by the administrative authority, upon finding that
a leas distance in safe, Such piping installed deeper than foot-
inge or bearing walla+ shall be 0 therefrom, except as may be
approved by the administrative authority, upon finding that a
greater angle in sgfe.
3.19 Drains a below sewer level.
:x.19.1 rp ping oca,e plow the level of the sewer
shall be installed as provided for in chapters 12 and 13.
3.20 ronnectione to plumbin s stem required.
J 3.20.1 All PIU Tlnjr i'�xturea, ra�na, appurtenances, and
appliances used to receive or discharge liq)xid wastes or sewage
shall be connected properly to the drainage system of the build-
ing or promisee, in accordance with the requirements of this code.
+ 3.21 Sewer required.
3j21.1 Every u np in which plumbing fixtures are install-
ed shall have a connection to a public sewer except as provided
in paragraph 3.22.1.
3.21.2 Building sewers shall connect into sewer pipe that
Parallels the surface of the ground. No sewer connection shall
be permitted directly into manhole.
3.22 Individual or rivate sew posal system.
I 3.22.1 eta puTil c sewer is no ava 1la a or use, sewage
and drainage piping shall be connected to an individual sewage-
disposal system found to be adequate and approved by the admin-
istrative authority.
3.23 Location of fixtures.
3.23.1 __� RR an en a on.--Plumbing fixtures, except
drinking foun�ins an a ng a avatories, shall be located in
compartments or rooms provided with ventilation conforming to
standards of the building code of the city of Jefferson.
3.2:%.2 Improper location.--Piping, fixtures, or equipment
shall not be acs e n suc a manner as .to interfere with the
normal operation of windows, doors, or other exit openings.
j 3.P4 Piping measurements.
3.?4.1 Except where o, erwiee specified in this code all
measurements between pipes or between pipes and walls, etc.,
j shell be made to the center lines of the pipes.
3.28 Venting.
3.2.F.1—The rainage system shall be provided with a sys-
tem of vent piping which will permit the admission or emission
of air so that under no circumstance of normal or intended use
ahall'the seal of any fixture trap be subjected to a pressure
differential.of more than 1 inch of water.
3.P6 Ventilation ducts.
3.26.1 Ventilation ducts from washrooms and toilet rooms
i shall exhaust to the outer air or form an independent system.
3.27 Water closet connections.
3.27.1 ea - our- nc es ends and stubs may be used
i on water closets or similar connections.
3.28 Dead ends.
3.98.1—rn--ff e nstallation or removal of any part of a
j drainage system, dead ends shall be avoided except where nec-
essary to extend a clean-out so as to be accessible.
3.29 Toilet facilities for workmen.
{ 3.29.1 Suitable toilet facilltie a n accordance with table
8.21.2 shall be provided and maintained in a sanitary condition
for the use of workmen during construction.
i
CHAPTER 4
MATERIALSATIALITY ANT) WEIGHT
E
4.1 Materials.
y 4.1.1 n mum standarda.--The materials listed in this
chapter shal a user e construction, installation, alter-
? ation,.or repair of any part of a plumbing and drainage system,
except that the administrative authority shall allow the exten-
}
lion, addition, or relocation of existing soil waste, or
vent pipes with matorials of like prndo or quality, as permitt-
ed in parapraph ?.F.1.
4.1.?. trse of material.--Vaterlals shall be free of manu-
facturinp defects or smape which would tend to render such
material defective, unsanitary, or othorwise improper to accomp-
lish the nurpose of this code. Use of materials shall be further
governed by the requirements imposed in other chapters of the
code.
4.2 special materials.
4,2.1 ea .--. eet ead shall weigh not less than 4 pounds i
per square foot. Lead bends, lend traps and lead pipe shall be
not less than one-eighth inch wall thickness.
4.2.p, ralkinp ferrules.--Calkinp ferrules shall be manu-
factured from Brass and a 1 be in accordance with the follow-
ing:
! Inside Minimum
i Pipe sizes (inches) diameter Length ,weipht
(inches) (inches) each
r
Lb. Oz.
9............................ 21 4 1 0 E
3............................ 3 4 1 12
4............................ 41
4 2 8
I
r ,
4,2.3 Fl�o_or f� s_. -Floor flanpes for water closets or S
similiar fixtures sFiIR lan�e be at least F/16" brass soldered to lead
I pipe, F 116" brass soldered to copper pipe or 4" deep caulking
flanpes if used with cast iron pipe; all closet screws and bolts
to be of F/16" brass stock.
4.2.4 rleanouts.
(a) rleanout-i) ups shall be of brass with raised or counter ;
sunk heads.
(b) counter-sunk heads should be used where raised heads
may cause a hazard.
4.3 Alternate materials and methods,
4.3.1 x s . n rem ses.-- n ex s np buildinps or premiaas
it which rl�mum— fnp pats at ens are to be altered, repaired, or ;
j renovated, the administrative authority has discretionary powers
to nermit deviation from the provisions of this code, provided
that such a proposal to deviate is first submitted for proper de-
i termi.n"tion in order that health and safety requirements, as they
pertain to plumbing shall be observed.
4.x.2 A rroval.--Provisi.ons of this code are? not intended
to prevent t e use o_ any material, device, method of assemblage
or installation, fixture, or appurtenance not specifically author- !
ized, provided such alternate has been snproved by the administra-
tive authority, in accordance with this section.
F.videnr•e of como�,1iRnce.--The administrative authority
shall require su cent evidence to enable him to Judge whether
proposed alternates meet the requirements of this code for safety
and health. ,
4."e Tests.--Vhen there is insufficient evidence to sub-
stantiste ela-rm--i`or alternates, t^e administrative authority
may require tests of compliance as proof to be made by an approved
agency at the expense of the applicant.
4.3.F Test Procedure.--Tests shall be made in accordance
vA th generally recognized standards; but in the absence of such j
standards, the administrative authority shall specify the test,
procedure.
4,?,F, Re sated e tests.--The administrative authority may
.require tests o repeated if, at any time, there is reason to
believe that an alternate no longer conforms to the requirements
on which its approval wss based.
i
TABLE 4.4
taterials for plumbing work shall meet or exceed the follow-
inp:
I. 1Jnderground drainspe outside building:
a) vitrified clay sewer pipe and fittings
b) cement-asbestos pipe and fittings
-10-
c) tarred service weipht east iron soil pipe and
fittings
TI. ilndarpround drainape within buildinpae
a) tarred service weipht cast iron soil pipe and
f i tti nps
b) lead pipe and fittinpe of 1/8" wall thickness
IIT.Above Around drainape within buildinps to R" above
flood level of fixtures
a) tarred service weipht cast iron soil pipe and
fittinpe with braes nipple at trap connection
b) lead pipe and fittinpe of 1/8" wall thickness
c) type nWV copper tubing and drainape fittinpe
(no short radius fittinpe to be used)
IV. TTnderp.roun.l vents:
a) tarred service weipht cast iron soil pipe and
f ttinps
b) lead pipe And fittings of 1/8" wall thickness
V. Above ground vents:
R) tarred service weipht cast iron soil pipe and
fittings
b) lead pipe And fittings of 1/8" wall thickness
c) type MJIV copper tubing and drainape fittings
(no short radius fittings to be used)
d) palvanized steel pipe with palvanized mailable
fittings
VI. Underground water supply:
a) type K copper tube with cast brass flared fitt-
inpe or solder joint fittings
b) cast iron pipe and fittinpe, 1FO psi
c) galvanized steel pipe with gnlvanized 'malleable
fittinpe cleaned and painted with coal tar enamel
VII. Above ground water supply
a) type L copper tube with copper or brass fittinpe
j b) galvanized steel pipe with palvanized malleable
fittings.
(HAPTE? 5
JOINTS AND rONNECTIONS
5.1 Ti .htness.
5.1.1 To—MEW—and connections in the plumbing system shall
be pea-tight and water tight for the pressures required by test,
with the exception of those portions of perforated or oven-joint
piping which are installed for the purpose of collectinp slid con-
veyinp pround or seepage water to the underground storm drains.
i F.2 es of joints.
F.2.1 a ce o n s.--Calked joints for cast-iron bell-and
spigot soil p pe s a 1�e firmly packed with oakum or hemp and
filled with molten lead not less than l inch deep and not to ex-
tend more than•one-eiphth inch below rim of hub. No paint, var-
nish, or other coating shall be permitted on the jointing material
until after the ,Joint has been tested and approved.
5.2.2 Threaded joints--screwed oints.--Threads shall con-
form to AmerTcan
—-Rat one spar pe t rea All burrs shall be
removed. Pipe ends shall be reamed or filled out to size of bore,
and all chips shall he removed. Pipe-joint cement and paint shall
be used only on male threads.
5.2.3 WI. ad 12ints.--Joints in lead pipe or fittings, or
between lend p pi a or R,t inps and brass or conner pine ferrules,
solder nipples, or traps, shall be full-wiped ,Joints.
Wiped ,Joints shall hnve an exposed surface on each side
of a joint not less than three-fourths inch and at least as thick
as the meterial being .jointed. Wall or floor flnnpe lead-wiped
joints shall be made by using a lead ring or flnnpe placed behind
the joint at wall or floor.
Joints between lead pipe and cast iron, steel, or wrought
iron shell be mode by means of a calking ferrule or solderinp
nipple.
e.?.4 Soldered or sweat joints.--Foldered or sweet joints
for tubing sail a mA e w e�i proved fl ttinps. Surfaces to
be soldered or sweated shall be cleaned bripht. The joints shall
be properly fluxed and made with nnnroved solder.
Joints in copper water tuhinp shall he made by the appropri.-
ate use of approved brass water fittings, properly sweated or
-11-
soldered together.
5.2.6 Flared pints.--Flared joints for soft-copper water
tubing shall"1-e ma—Ice w fittings meeting approved standards.
The tubing shall be expanded with a proper flaring tool.
5.2.6 Hot-Pour joints.--Pipe joints shall be carefully
centered and-3'irm1q packed wl h oakum or jute in such a manner
as to not disturb the alignment of the pipe, and in euch'a way
ae to permit the compound to have the greatest unobstructed aur-
face for good pouring and adhesion. After the pipe joint has
been thoroughly cleaned, a suitable runner shall then be placed
and the compound, heated to flowing consistency shall be poured
in such a manner that the entire remaining annular space shall
be filled. Hot-poured compound shall consist of mineral filled
Plastic or bitumaetic coal tar containing an inert filler which i
I shall have high tensile and compressive strength, yet shall
Poses.. sufficient cold flow to yield without breaking when sub-
jected to slowly applied compressive forces. It shall be per-
missible to make alternate joints before lowering the pipe into
the trench. (Paragraph 5.2.6 & 5.2.8 apply to vitrified cla7-sewer pipe)
i 5.2.7 pie cast joints.--Vitrified clay sewer pipe shall be
fitted with an approve ectory made precast joint attached to
the pipe. Factory made joints shall be fitted with a ring;, die -
cast into the socket of the pipe and the spigot shall be fitted
with a collar of suitable material. The collar of the spigot
shall be of a size such that when shoved into the ring of the
I socket there shall be a tight fit between the interfaces. When
putting die cast Joints together only the solvents and lubricants
recommended by the pipe manufaaturer shall be used.
S.2.8 Brazed ointa.--Brazed ,joints shall be made in accord-
ance with the Provisions of section 6 of the Code for Pressure
Piping, ASA B31.1-1942 (with 1944 and 1947 Supplements).
F.2.9 Cold Troweled Mastic joints,_--Cold applied mastic
joints shall consie•�of two ponente- one, a dry powder com-
posed of mineral bitumen, pulverized to the proper fineness and
blended with a mineral filler and second, a liquid bituminous
fluxing agent, which when combined with, the powdered component,
shall form a homogeneous plastic compound. The compound shall
be of the internal set up mastic type and shall not be such as to
depend upon oxidation or evaporation to obtain its met. It shall
be self-hardening and shall set up if submerged in water. It
shall be mixed on the job at the time used, and be of such con-
sistency that it may be placed in the bells of the pipe and remain
there without slumping.* After each•joint has been thoroughly
cleaned, mastic compound shall be troweled into the bottom one-
third of the bell of the first pipe laid. A closely twisted
gasket of jute or oakum shall be used to center the spigot of
the next pipe inserted in the bell. After the pipe has been-bed-
ded to line and grade, the entire remaining annular space shall
be troweled full with bituminous mastic.
F.2.10 Asbestos cement sewer pipe Joints.--Joints in
asbestos cement'pipe shall a mace wi s eeve couplinga of the
same composition as the pipe, sealed with rubber rings. Joints
between asbestos cement pipe and metal pipe shall be made by
means of an adapter coupling calked as required in paragraph
F.3 Ilse of joints.
F.?.I CI�y�y Beewepipe.--joints in vitrified clay pipe or
between suchpe and metal pipe shall be made as provided in
paragraphs 5.2.6 and F.?.7. and 5.2.9.
F.3.2 fnat-iron 21, e.- Toints in cast-iron pipe shall be
either calked oorr screws , as provided in paragraphs. 6.2.1 and
F.3.3 Fcrew i e to cast-iron.--Joints between wrought-
iron, steel, rasa, or copper pipe, and cast-iron pipe shell
be either calked or threaded joints made as provided in pars.-
1 praphs F.2.1 and F.?.2 or shall be made with approved adapter
fittings.
F.:1.4 (o er water tube.--Joints in copper tubing shall
bb made either y e appropr ate use of approved-brass water
fittings, properly sweated or soldered together or by means
of approved compression Sittings as provided in paragraphs F.2.4
and S.P.F.
i
F.4 Special Joints. i
S.4* ron er t,u6'f_nzto screwed pipe joints.--.Toints from
a copper tubing o readed p pe s all a Mn e y a use of brass
i
-12-
converter fittings. The joint between the oonpor pipe and the
i fittinp shall be properly sweated or soldered, and the connection
j between the threaded pipe and the fitting shall be made with a
standard pipe size screw ,joint. connections between steel and
copper materials shall be fitted with approved non-conductive
devices.
5.4.P.. Brazin or weldin .--Praz1np or welding shall be per-
formed in accordance ;WIFE
requ remants of recopnized published
standards of practice and by licensed or otherwise qualified
mechanics except when it is determined by the administrative
authority to t-e equivalent procedure for the vurpose of this
code.
5.4.z SliR i.nta.--7n drainape and water pipi.np, slip
joint; may re use only on the inlet aide of the trap or in the
trap seal, and on the exposed fixture supply.
F.4.4 Fx ansionloints.--Fxpansion joints must be accessible
and may tie uae w ere necesaary to provide for expansion and con-
traction of the pipes.
5.4.F. Ground , oint brass connecti_ons.Ground joint brass
i connections wwiicT a Sow a ,ua men, of tubing but provide a rigid
joint when made up sh611 not be considered as slip joints.
5.6 Unions (screwed)
5.F.1 Dra na e system.--Unions may be used in the trap
seal and on e n e ' aside of the trap. Unions shall have metal-
to-metal seats.
F.15.2 Water-supply system.--Unions in the water-supply
system shall-Fe—m-FeEal-to-metal with ground seats.
5.6 Water closet edeatal urinal and tra standard service.
F.9.1 x ure connect ons a weep ra nags p pas an wa er
closets, floor-outlet service sinks, pedestal urinals, and earthen-
were trap standards, shall be made by means ol' '5126" thick brass
flanges soldered to the drainage pipe or by means of 4X4" or more
cast iron flanges with a calked Joint when drainape pipe is of
cast iron. The connection shall be bolted, with an approved gasket
or washer or setting compound between the earthenware and the
connection. The floor flange shall be set on an approved firm
base. The use of commercial putty or plaster is prohibited.
5.7. Prohibited Joints and connections.
,5.7.1—Draina e s a em.-- n-y ft nag or connection which
has an enlargement c am er, or recess with a ledge, shoulder,
or reduction of pipe area, that offers an obstruction to flow
through the drain, is prohibited.
5.7.2 No fittinp'or connection that offers abnormal obstruc-
tion to flow, shall be used.
5.8 Water roofin of o enin s.
F,A.1 • ons a e roo , around vent pipes, shall be made
water-tight by the use of lead, copper, galvanized-iron, or other
approved flashinps or flashing material. Exterior-wall openings
shall be made watertight.
5.9 Increasers and reducers.
15.9.1 ere d erant sizes of pipes, or pipes and fittings
are to be connected, the proper size increasers or reducers or
reducing fittings shall be used between the two sizes.
r
i
CHAPTER 6
TRAPS ANA MEANOUTS
6.1 T��re��a._
6:1.1i'izture terra s.--Plumbing fixtures, excepting those
having interpra raft pa;aFiall be separately trapped by a water-
seal trap, placed as close to the fixture outlet as possible.
(a) Provided, that a combination plumbing fixture may be
Installed on one trap, if one compartment is not mor.
than 6 inches deeper than the other and the waste
outlets are not more than 30 inches apart.
(b) Provided, that one trap may be installe,' for a set
of not more than three sinple-compartment sinks or
laundry trays or three lavatories immediately adjacent
to each other in the same room, if the waste outlets
are not more than i0 inches apart and the trap is
centrally located when three compartments are installed.
9.1.2 Distance of tra to fixture.--The vertical distance
froth the fixture ou e o e rap weir shall not exceed 24
Inc ea.
-13-
f
6.2 T e an+ size of tra s and fixture drains.
6.2.1 re a ze.-- o a ze nom na ame er of trap for
a riven fixture a s e sufficient to drain the fixture rapidly
but in no case lose than given in chapter 12 table 12.4.?.
P.2.2 *?elation to fixture drains --No trap shall be larger
than the fixture rain o w c e connected.
i F.?.3
j (a) s1
rix ure apa s
all he self-cleaning other than integral
{ traps without. partitions or movable parts, except as
` specifically npproved in other sections of this code.
(h) Flip joints or couplinps may be used on the trap inlet
j or within the trap seal of the trap if metal-to-metal
pround Joint is used.
(c) A'trap interrrnl with the fixture shall have a uniform
interior and smooth waterway.
6.2.4 Drum�traps.
(a) Drum traps shall be G inch.. in diameter and shall
be provided with a water seal of not less than 2 inches.
(b) The trap screw shall be one size less than the trap
diameter.
6.3 r1eneral re uirements.
r-.3.1 ra sea ac xture trap shall have a water seal
of not less tf= 2 Inc hes and not more than 4 inches, except where
a deeper seal is found necessary by the Plumbing Inspector for
special conditions.
P.3.2 Tra cleanouts.
(a) P,nc x ure rap, except those cast integral or in
combination with fixtures in which the trap seal is
readily accessible or except when a portion of the
trap is readily removable for cleaning purposes, shall
have an accessible brass trap screw of ample size pro-
tected by this water seal.
(b) Cleanouts on the seal of a trap sha11 be made tight
with threaded cleanout plug and approved washer.
6.3.s Tra level and rotection.--'traps shall be set true
with respect tp,t e r water sea s and, where necessary, they
shall be protected from freezing-
A.?.4 �Traps unde" round.--underground traps, except P traps
Into which f o ra_ns w removable strainers discharge, shall
be provided with accessible and removable cleanouts.
f.?.F Prohibited tra s.--
(a) No trap w c , spends for its seal upon the action of
movable parts shall be used.
(b) Pull S traps are prohibited.
(c) Bell traps are prohibited.
(d) rrown-vented traps are prohibited.
! 6.3.6 Double t rapp•--No fixture shall be double trapped.
{ F„4 P ne c eanoUta.
F.4.1 oca on.-- . eenouts shall be not more than EO feet
apart in hot zon.a drainage lines of 4-inch nominal diameter or
less and not more than 100 feet apart for larger pipes.
! a.4P 11 -1 round drainers.--Cleanouts, when installed on
an underproun�dra .n, s a :. extended to or above the finished
grade level directly above the place where the cleanout is in-
stalled; or may be extended to the outside of the building when
found necessary by the Plumbing Inspector.
6.4,I When a of direction.--cleanouts shall be installed
at each change o rec on of e building drain greater than
4, .
6.4.a Concealed i in .--rleanoute on concealed piping
shall be extended tour an terminate flush with the finished
wall or floor; or nits or chases mny be left In the wall or
floor, provided they are of sufficient size to permit removal
of the cleanout plug and effective cleaninr of the system.
1.4.F Base of stacks.--A cleanout shall be provided at or
near the foot of each ver cnl waste or soil stack. For buildings
with a floor slab on fill or Around or with less than 18-inch
crawl space un•lev, the floor the following will be acceptable in
lieu of a cleanout at the base of the stack: The building drain
may be extended to the outside of the building and terminated in
an accessible cleanout or en accessible two-way cleanout installed
in the buildinp drain downstream from the stack not more than F
feet outside the building wall. j
y 6.a.6 Direction of flow.--Every cleanout shall be installed
-14- t
i
so that the clesnout opens in tho direction of the flow of the
( drainage line.
6.4.7 Cleanout plugs shall not be used for the installation
of new fixtures or floor drains except where approved in writing
by the Plumbing Inspector.
1 6.5 Size of cleanoute.
{ 6.F.1 small ee.--, ennouts shall be of the same nominal
J size a. ;he inches and not loss than 4' inches for
6.F.2 L_aarrge�_1pe�_--For underground piping over 10 Inches,
j
manholes shall�e provided and located at each 90 change in
direction and at intervals of not more than 1F0 feet.
6.F.3 rovers.--Metal covers shall be provided for manholes.
j 6.6 CleanouE-ea
6.6.1 ar o des_.-- eanouts on I-inch or larger pipe
shall be,so ne a 6-d--that there is a clearance of not less than
18 inches for the purpose of rodding..
{ 6.6.2 Small pi es.--Cleanouts smaller than 3 inches shall
be so Installed a ere is a 12=inch clearance for rodding.
66.3 Calking.-Cement, plaster, or any other permanent
$ finishing ma era a all not be placed over a cleanout plug.
j 6.6.4 Concealment.--Plhere it is necessary to conceal a
cleanout plug, a cover ng plate or access door shall he provided
which will permit ready access to the plug.
� 6.7
{ cleanouteui_val�ento.
a fixture with integral trap, read-
6.7.1—W- Xp
{ ily removable without disturbing concealed roughing work, may be .
accepted as a cleanout equivalent, if there is no more than one
90 bend on the line to be rodded.
j 6.8 Acid roof traps.
6.8.1 ere a v r ied-clay or other brittlexare, acid-
proof trap is installed underground, it Bhall be embedded in
concrete to a thickness of 6 inches from the bottom and sides of
the trap.
CHAPTER 7
INTERCEPTORS--SEPARATORS AND BACRYIATER VALVES
7.1 Interceptors and separators.
7.1.1 When re Wu re .--1n ercpfors (including grease, oil,
and sand intercep ors, .. c.) shall be provided when, in the
judgment of the administrative authority, they are necessary for
the proper handling of liquid wastes containing grease, flammable
wastes, sand, and other Ingredients harmful to the building drain-
age system, the public sewer or sewage-treatment plant or processes.
7.1.2 A royal.--The size, type, and location of each inter-
; captor or separa or s all be approved by the administrative author-
; ity in accordance with generally accepted standards and no wastes
other than those requiring treatment or separation shall be dis-
charged into any interceptor.
7,1.3 Se aration.--A mixture of light and heavy solids or
liquids and so a av ng various specific gravities may be
J treated and then separated' In an interceptor as approved by the
administrative authority in accordance with paragraph 7.1.2.
7.2 Grease intt�erce��?tors.
7.2.1�"o,mnerel�u3Tdrn s,--A grease interceptor shall be
installed 'in the waste line leading fr*om sinks, drains, or other
fixtures in the following establishments when, in the Judgment
of the administrative authority, a hazard exists: restaurants,
hotel kitchens or bars, factory cafeterias or restaurants, clubs,
or other establishments where grease can be introduced into the
1 drainage system in.quantities that can effect line stoppage or
hinder sewage disposal.
7.2.2 Residential units.--A grease interceptor is not re-
quired for individual dwe ng units or any private living
quarters.
{ 7.3 Oil 9e arators. !
( 7.3.1 An o 1 separator shall be installed in the drainage t
system or section of the system where, in the judgment of the
administrative authority, a hazard exists or where oils or other
flammables can be introduced or admitted into the drainage system
by accident or otherwise.
7.4 Sand interceptors. `
7.4.1 Commercial installations.--Sand and similar Inter.
captors for heavy solids shall e so designed and located as
to be readily accessible for cleaning, and shall have a water
seal of not less than 6 inches.
7.F Ventin interce-tors.
7.F,1 e e van n erceptora shall be so designed
that they will not becom e air bound if closed covers are used.
Each interceptor shall be properly vented.
7.6 Accessibilit of interce tor.
7,6.1 ac n ercep or e e e so installed as to provide
ready accesaibility to the cover and means for servicing and
maintaininp, the interceptor'in working and operating condition. t
The use of ladders or the,removal of bulky equipment in order
to service interceptors shall constitute a violation of access-
ibility.
7.7 Interceptor's efficient .
7,7.1 ow rate.-- n ercep ore shall be rated and approved
for their of -c eni'cy as determined by the administrative author-
ity and in accordance with generally accepted practice.
7.7,2 Approval.--No grease interceptor shall be approved
until it has success Tully passed the testing and rating procedure
i set up by the administrative authority.
7.7.3 Water connection.--Water connection for cooling or
operatinp an Interceptor s n 1 be such that backflow cannot occur.
1 7.8 Laundries.
7.8.1 n erce tore.--Commercial laundries shall be equipped
with an interceptor having a removable wire basket or similar
device that will prev.ent strings, rage, buttons, or other mater-
Sala detrimental to the public sewerage system from passing into
the drainage system.
7.8.2 Interce BE in device.--Basket or device shall prevent
passage into a rags sys hem of solids one-half inch or
larger in size. The basket or device shall be-removable for
cleaning purposes.
7.9 Bottling establishments.
i 7.9.1 o n o ling plants shall discharge
their process was as n o an interceptor which will provide
j for the separation of broken glass or other solids, befcre die-
charginp liquid wastes into the drainage system.
7.10 Slaughterhouses.
7.10.1 .e ar j--Slauphtering-room drains shall be
equipped with separa era_which shell prevent the discharge into
the drainage system of feathers, entrails, and other materials
likely to clog the drainage system.
7.10.2 Inter ce tors.--Slauphterinp and dressing-room
trains shall a pro v a with interceptors approved by the adm-
Snistrative authority, in accordance with paragraph 7.1.2.
7.10.3 Food- rinder,--Wastes may discharge directly to
the building Bra nags Bye em.
7.11 Corunercial prinders.,
7.11.1 D�ac ar e.-- ere commercial food-waste grinders
are installed, a was a from those units may discharge direct
Into the building drainage system and not through a grease inter-
ceptor.
7.11•.2 A --The administrative authority shall deter-
mine where an w at ype of interceptor is necessary, except
that interceptors shall not be required for private living quarters
or residential units,
7.19 Maintenance.
7.12.1 can ng.--Interceptors shall be maintained in
efficient operas nF. condition by periodic removal of accumulated
grease.
7.13 Oil interceettor .
7.1:x.1 Where re-ui-red�s.--OS1 separators-shall be installed
when required y e administrative authority and shall conform
torequirements of paragraph 7.13.2
7.13.2 Minimum dimension.--Oil separators shall have a
depth of not less than 2 fe--et-Uelow the invert of the discharge
drain.
7.1;3.3 Motor-vehicle atora e.--Interceptors shall have a
capacity of 6 cu c ee w ern no more than 3 vehicles are
serviced and 1 cubic foot in net capacity shall be added for
each additional vehicle up to 10 vehicles. Where more than 10
vehicles are serviced, the administrative authority shall determine
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the size of separator required.
7.13.4 Motor-vehicle servioin .--Where storage facilities
are not maintained, as in repair shops, the capacity of the
separator shall be based on a net capacity of 1 cubic foot for
each 100 square feet,of surface to be drained into the inter-
ceptor with a minimum capacity of 6 cubic feet.
7.13.F 3 ecial typeesseparators.--P.efore installing any
special type sopara or maw n incTudinR all pertinent infor-
mation shall be submitted for approval of the administrative
authority, as being in, accordance with this code.
7.14 Backwater valves.
7.14.1—Fixtures _su act to backflow.--The installation of
backwater devices BS 12 be in lacer once with lawful requirements
i of the administrative authority having jurisdiction over the
public sewer system.
± 7.14.2 Fixture branched.--Backwater valves shall be install-
1 ed In the branch of e bu=nF drain which receives only the
discharge from fixtures located within such branch and below
grade.
7.14.3 Material.--All bearing parts of backwater valves
shall be of corros on-rssiatant material.
7.14.4 Backwater valves shall be so constructed as to in-
aura a mechanical seal apainst backflow.
7.14.E Diameter.--Backwater valves, when fully opened,
y shall have a capacity`not leas than that of the pipes in which
they are installed.
7.14.6 Location.--Backwater valves shall be so installed
as to Provide recy acaccessibility to their working parts.
i CHAPTER 8
j PLUMBING FIXTURES
8.1 General requirements--Materials.
8.1.1 Quality o x urea.-- um np fixtures shall have
smooth impervious sur aces, be free from defects and concealed
fouling qurfacea and shall be e3iaeiried' as "Grade A".
{ 8.2 Alternate materials.
8.2.1 a er a s.-- n s and special-use fixtures may be
made of soaps one, c emical stoneware, or may be lined with lead,
copper-base alloy, nickel-copper alloy, corrosion-resisting steel
or other materials especially suited to the use for which the
fixture is intended.
8.3 Overflows.
8.3.1 Baa 1n� -When any fixture is provided with an over-
flow, the wa Fe 1 be so arranged that the standing water in
i the fixture cannot.rize in the overflow when' the stopper is
closed or remain in the overflow when the fixture is empty.
t 8.3.2 Connection.--The overflow pipe from a fixture shall
f be connected on a ouse or inlet aide o?' the fixture trap,
•i except that overflows or flush tanks may discharge into 'the water
closets or urinals served by them, but it shall be unlawful to
connect ouch overflows with any other part of the drainage system.
8.4 Installation.
8.4.1 e Plumbing, fixtures shall be installed in a
manner to of o easy access for cleaning. Where practical, all
pipes from fixtures shall be run to the nearest wall.
8.4.2 Joints.--Where fixture comes in contact with wall
and floors, e o nts shall be watertight.
8.4.3 Sscurin. fixtures.--Floor-outlet fixtures shall be
rigidly oecure o oor by screws or bolts.
8.4.4 Wall-human bow�ls.--Wall-hung water-closet bowls shall
be rigidly supporesa yea concealed metal aupportinP member so
*hat no strain is transmitted to the closet connection.
8.4.5 Setting.--Fixture shall be set level and in proper
alinement wITH rei`erence to adjacent walls.
8.5 Water-aupgU rotection.
8.5.1 u ngs8.- a supply lines or fittings for
•very .plumbing z ure s all be so installed as to prevent
backflow.
8.6 Prohibited fixtures and connections.
8.6.1 z ree.-- an, valves p unger, o •fset, washout
latrine, frog pproof,-and other water closets having, an invisible
seal or an unventilated apace or having wills which are not
-lry-
thorouphly washed at each discharge, are prohibited. Any water
closet which might permit siphonage of the contents of the bowl
back into the tank are prohibited.
8.6.2 Connections.--Fixtures having concenled.elip-joint
1 connections shall e provided with an access panel or utility
space so arranged as to make the slip connections accessible for
inspection and repair. f
0.7 Water closets.
8.7.1 Public use.--Water-closet bowls for public use Shall
be of the elonga�yps.
0.7.2 -FlushU6 device.--Water-closet tanks shall have a
flushing capae'�y au c en to properly flush the water-closet
bowls with which they are connected.
i 0.7.:9 Float valves.--Float valves in lowdown tanks shall
close tight an prow 7o water to properly refill the trap Beal
in the bowl.
8.7.4 Close-cou led tanks.--The flush-valve seat in close-
coupled water-c ose com na no shall be 1 inch or more above
the rim of the bowl, so that the flush-valve wi•11 close even if
j the closet trapway is clogged, or any closets with flush valve
Y seats below the rim of the bowl shall be so constructed that in
} case of trap stoppage, water will not flow continuously over the
rim of the bowl.
8.7'5 Automatic flush valve.--Flushometers shall be so in-
stalled that they will e readily accessible for repairing. When
the valve is operated, it shall complete the cycle of operation
automatically, opening fully and closing positively under the
service pressure. At each operation the valve shall deliver water
in sufficient volume and at a rate that will thorouphly flush the
fixtures and refill the fixture trap. Maine shall be provided
for regulating flush-valve flow. Not more then one fixture shall
be served by a single flush valve. Protection against backflow
shall be provided as specified in paragraph 11.4.3.
8.7.6 Seats.--Water closets shall be equipped with seats
of smooth noREsorbent material. All seats of water a2oaeta pro-
vided for public use shall be of the open-front type less cover.
4 Tntergral water-closet seats shall be of the same material as the
fixture.
8.8. Urinals.
8.8.1 -A_u o�fiic fluehin tank.--Tanks flushing more than
,,ne urinal shall e auto c n operation and of sufficient cap-
acity to provide the necessary volume to flush and properly cleanse
all urinals simultaneously. .
8.8.2 Urinals a ui oed'with automatic flush valves.--Flush-
ometers shal a as prescribed n paragraph and no valve
shall be used to flush more than one urinal.
i 8.8.3 Trough urinals.--Trough urinals shall be permitted
only in placed ems porary occupancy. They shall be not lees
than 6 inches deep and shall be furnished with one-piece backs
and have strainers with outlets at least 1i inches in diameter.
The washdown pipe shall be perforated so as to flush with.an even
curtain of dater against the back of the urinal. This pipe shall
be securely clamped as high as practicable to the back of the
urinal. Trough urinals shall have tanks with a flushing capacity
of not lees than li gallons of water for each 2 feet of urinal
length.
8.8.4 Equiivvalleent��1 ngtthi,--Trough urinals shall be figured
on the basis-off-one ur n—i 1-for each 18 inches of length, provided
that--
24-inch trougn equals 1 urinal.
36-inch trough equals 2 urinals.
48-inch trough equals 2 urinals.
60-inch trough equals 3 urinals.
72-1nch trough equals 4 urinals.
8.8.5 Floor-type urinals.--Floor-type trough urinals are
prohibited.
8.8.6 Surropdin, materials.--Wall and floor space to a
point l foot'-in rod o ur na p and 4 feet above the floor,
f and at least, 1 foot to each side of the urinal shall be lined
with nonabsorbent material.
0.9 Strainers and fixture outlets.
a 8.9.1 All plumbing x urea, o er than water closets and
syphon-action washdown or blowout urinals, shall be provided with
metal strainers.
8.10 Lavatories.
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12
:i A.10.1 Waste outlets.--Lavatories shall have waste outlets
$ not less than it'Inches 'in diameter. Wastes may have open strain-
era or may be provided with stoppers.
d 8.11 Shower rocs tore and com artments.
8.11.1 Shower.-- a ower compar--r Emend, except those built
directly on t e ground or those having metal enameled receptors,
shall have a lead or copper shower pan or the equivalent thereof
or as determined by the administrative authority. The Dan shall
turn up on all sides at least 2 inches above finished-floor-level.
Traps shall be so constructed that the pan may be securely fast-
ened to the trap at the seepage entrance making a watertight joint
between the pan and trap. Shower receptacle waste outlets shall
be not less than 2 inches in diameter and have removable strainers.
80111.2 On�the ground.--fihoVaBr receptors built on the ground
2 shall be cons rum c d ire ndense nonabsorbent and noncorrosive mat-
} erials and shall have smooth impervious surfaces, or as provided
in paragraph P.11.1
S 8.11;3 Dimensions.--Shower compartments shall have not less
than 1,024 square fnIos in floor area and, 'if rectangular, square,
or triangular in plan, shall. be not less than 30 inches in short-
)f est dimension.
i 8.11.4 Construction.--Floors under shower compartments shall
? be laid on a amoo an s ructurally sound base and shall be lined
and made watertight with sheet lead, copper, or other acceptable
materials. Shower compartments located in basements, cellars, or
in other rooms in which the floor has been laid directly on the
{ ground surface need not be lined.
8.11.5 Public or institution showers.--T'loora of public
1 shower rooms shall e drained in such a manner that no waste water
! from any head will pass over areas occupied by other bathers.
8.11.6 Walls.--Shower compartments shall have walls construct-
? ed of smooth, noncorrosive and nonabsorbent waterproof materials
to a height of not less than 6 feet above floor.
8.11.7 Joints.--guilt-in tubs with overhead showers shall
have waterprop ,o nts between the tub and walls and the walls
shall be waterproof.
8.12 Sinks.
8.12,1 es a outlets.--Sinks shall be provided.with waste
outlets not less than aches in diameter. Waste outlets may
have open strainers or may be provided with stoppers.
8.12.2 Food rindera.--Sinks on which a food waste grinder
is installed s a avo a waste opening not less than 33 inches
in diameter.
8.13. rood-waste- rinder unite.
8.13.1 a orate connec ens.--Domestic food-waste-disposal
units shall be connec a and trapp ed separately from.any other
fixture or compartment. Units may have either automatic or hand-
operated water supply control.
8.13.2 Crease interce tore.--No food-waste grinder shall be
nonnected throup a grease .n;erceptor.
8.13.3 Commercial-t a .rinders.--Commerical-type food-grind-
era shall be prov a e? no ess than a 2-inch waste line. Each
waste line shall be trapped and vented as provided in other sections
of this code.
8.14 Drinkinp fountains.
8.14.1 es n an cons ruction.--Drinkinr fountains shall
conform to atan ar s o e Foard of, Health, State of Missouri.
8.14.2 Protection of water au nl .--Stream projectors shall
l be so assemble as o prov .e an or ce elevation as set out in
standards of the Board of Health, State of Missouri.
8.1.5 Floor drains.
8.11, 1 1P strainers.--Floor drains shall have metal
traps and a .m n mum water sea of 2 inches and shall be provided
with removable strainers. The open area of strainer shell be at
i least two-thirds of the crzaa-section area of the drain line to
which it connects.
8.1F.9 Size.--Floor drains shall be of a size to serve eff-
iciently the purpose for which it is intenand.
8.16 Dishwashin. machinea.
} B.l6.l�rotec on.-- omea is dishwashing machines shall meet
requirements n pai` ragraph 11.4.3.
A.16.2 Se arate t.1 .--Each unit shall be separately trapped
y oi- discharged n rec y nto a properly trapp'ad and vented fixture.
8.16.'A Al r Commercial dishweshing machines shall be
connected throup as n'air gap or as provided in chapter 10, Indirect
{
Waste Piping and Special Wastes.
8.18.4 Hot Water.--Dishwashing machines or similar dishwash-
ing equipment n`oaf private living quarters or dwelling units
shall be provided with water at 180'F. for sterilization.
P.17 Multiple wash sinks. I
8.17.1 Cirrcu ar yy�pe�..--Each 16 inches of wash oink circumfer-
ence (circular type) a s11-be equivalent to one lavatory.
8.17.2 Straight-line type.--Multiple wash sinks of the straight
line type shall have hot and cold combination spouts not closer than
18 inches from adjacent similar spouts and each spout shall be con-
sidered the equivalent of one lavatory.
8.18 Garbs a-can washers.
1 8.18.1 �D s��ca�rrggt�.,;_ ar age-can washers shall not discharge
through a trap s'e�n.any other device or fixture.
8.18.2 Grease interce tor.--The discharge from a Farbage-can
+ washer shall a connec a roug n a grease interceptor. 1
SAS.3 Baskets.--The receptacle receiving the wash from garb-
aF,e cans shal�rovided with a basket or similar device to prevent
the discharge of large particles into the building drainage system.
8.18.4 Connections.--Water-supply connections shall conform t
to paragraph -
! :Z-L 8.19 Laundry traps.
8.18.1 ealf a tou 7ete.--Each compartment of a laundry tray shall
be provided with a waste outlet not leas than 1i inches in diameter
and with a stopper.
8.19.2 Overflow.--Laundry-tray overflows shall conform to the
requirements or aragraph 8.3.1.
8.20 S ecial fixtures and s ecisltiea.
8.20.1. s er an ra n connec oe.--Baptistries, ornamental
a n
`
1 and lily pools, aquaria, ornamen
ountain basins, and similar
constructions when provided with water supplies shall be protected
from back siphonage as required in paragraph 11.4.3.
8:26.2 A royal.--Specialties requiring water and waste conn-
ections shall a eu ttsd for approval of the administrative auth-
ority.
8.21 Minimum facilities.
8.21.1 erever p lumbing fixtures are installed, the minimum
number of each type of fixture installed shall be in accordance
with table 8.21.2, unless otherwise specifically provided.
(Sec fbllawing page for Table 8.21.2)
CHAPTER 9
HANGERS AND SUPPORTS
9.1 Strain and stresses.
9.1.1 enera .-- p R n a plumbing system shall be installed
without undu sera n_s and stresses and provision shall be made for
expansion, contraction, and structural Battlement.
i 9.2 Vertical p1 Ing.
9.2.1 EticFimen�=Vertical piping shall be secured at auffici-
i ently close intervals fo-keep the pipe in alinement and carry the
weight of the pipe and contents.
9.2.2 Cast-iron Roil pp�ie�.--Cast-iron soil pipe shall be sup-
ported at not'leas an�every story height and at its base.
9.2.3 Screwed pipe.--Screwed pipe shall be supported at not
leas than every otHer story height.
i 9.2.4 Co er tubin --Copper tubing shall be supported at
not lees than at every .1g ry height and at its base. Y'
j 9.2.8 Lead pike. -Load pipe shall be supported at intervals
not exceeding d-feet.
9.3 Horizontal piping.
9:3.1 to oor s.-- or zontal piping shall be supported at suff-
iciently close n er%,als to keep it in alinement and prevent sagging.
9.3.2 rant-iron_�Ro�il pi.�ei--Caat-iron soil pipe shall be sup-
ported at no more 5 food ntervals.
9.R.3 Screwed pipe.--Screwed pipe shall be Pupported at approx-
imately 12-foo- E ervaTa.
9.3.4 nop er tubing.--Copper tubing shall be supported at ap-
proximately - oo n ervals for piping 1J inches and smaller and
10-foot intervals for piping 2 inches and larger.
9.3.6 Lead pipe.--Lead pipe shall be supported by strips and
other-wise for a en ire length.
-20-
9.3.6 7n ground.--Plping'in the grovmd shall be laid on a
firm bed for its entire length, except where support is otherwise
provided which is ademiate in the judgment of the administrat-4-
authority.
9.4 Nan era and anchor..
9.4.1-7�In er .7 ._ angers and anchors shall be of metal of
sufficient . re_n_g_f To maintain their proportional share of the
pipe alinements and prevent rattling. No hangers made of wood,
i rope, twine or chain shall be premitted. Wire hangers shall be
at least 9 gunge wire and may be used on pipes of 2" nominal in-
ternal diameter and smaller., Perforated extention bar or hanger
iron shall be of at least 16 gunge stock, 3/4" wide.
9.4.2 Attachment.--Hangers and anchors shall be securely
attached to the uilding construction.
9.F Strains and stresses.
9.F.1 Installation o p pe.--PipinP in a plumbing system
shall be so Installed as to prevent undue strains and stresses.
9.F.2 Expansion and contraction.--Provision shall be made for
expansion anA contraction o piping and for structural settlement
that mny affect the piping.
9.F.3 P; in. in concrete.--Piping in concrete or masonry walls
or flttings s a e placed or installed in chases or recesses which
will premit access to the piping for repair or replacement.
9.6 Bp.se of stacks.
9.6.1 u or ..-- asas of cast-iron soil stacks shall be sup-
ported on concre e, rick laid in cement mortar, metal brackets at-
tacked to the building construction, or by other methods approved
by the administrative authority.
9.6.2 Pip4r.g material.--Other piping material shall be so an-
chored as to take the lon=off the stack at the base.
CHAPTER 10
INDIRECT WASTE PIPINO ANT) SPECIAL WASTES
10.1 Indirect vraste pi�in�
10.1.1 •enera - aster 3rom the following shall discharge
to the building cd`F nafe system through an air gap serving the in-
dividual fixtures, devices, appliances, or apparatus.
10-1.2 rood handling.--Establishments engaged in the storage,
preparation, sel ng, serving, processing, or otherwise handling of !
food shall have the waste piping from all refrigerators, ice boxes, !
rinse sinks, cooling or refrigerating coils, laundry washers, ex-
tractors, steam tables, egg boilers, coffee urns, or similar equip- 1
ment discharge indirectly into a water-supplied sink or receptor and
the waste .outlet shall terminate at least 2 inches above the flood
rim of such sink or receptor.
10.1.3 Commercial diahwashi.n machines.--Dishwashing machines,
except those n pr vats v ng quarters or dw elling units, shall be
Indirectly connected, except that when a dishwsshing machine is lo-
cated adjacent to a floor drain the waste from the dishwashing mach-
ine may be connected direct on the sewer side of the floor drain trap. R
10.1.4 Interceptor.--An interceptor may be placed on the out-
let side or t e s waa np machine, or on the discharge side of the
' Waste receptor.
i 10.1.1 ronnectlon.--Indirect waste connections shall be pro-
vided for dra.ns, over ows, or relief vents from the water-supply
system.
10.1.6 Sterile materials.--AnpliancAs, devices, or apparatus
such as stills, s er zers, and similar equipment requiring water
and waste and. used for sterile material shall be indireotly Conn-
ected or provided with an air gap between the trap and the appliance.
10.1.7 Trips.--Anpliances, devices, or apparatus not regular-
ly clrased as__prumbinF fixtures but which have drips or drainage out-
lets, may be drained by indirect waste pipes discharging into an open
receptacle as provided in paragraph 10.1.2.
1 1).2 Paterial and size.
10.2.1 o material and size of indirect waste pipes shall be
in accordance with the provisions of the other sections of this code
applicable to sanitary-drainnge piping.
10.;i LLengthh..
10.:1.1—ti'Tsr Pi Pe.--Any indirect waste pipe exceeding 2 feet
in .lenrth sha a rapped.
10.;3.2 Yaximum length.--The maximum length of the indirect
-21-
i
f waste to vent shall not exceed 15 feet. E
I 10.3.3 rlesninp.--Indirect waste piping shall be so Installed y
!!!! as to permit Fe—Fry for flushing and cleansing.
10.4 Air gu or backflow preventer. r
10.4.1 Provision o air pap.--Me air Rap between the indirect
waste and the bullding cirsinnpe system shall be at least twice the
1 effective diameter of the drain served and shall be as provided in
paragraph 10.4.2 and 10.4.3.
10.4.2 By extending the 'indirect waste pipe to an open, access-
ible slop sink, floor drain, or other suitable fixture which is pro-
perly trapped or vented. The indirect waste shall terminate a suffi-
cient distance above the flood level rim of the receiving fixture to
provide the required air pap, and shall be installed in accordance
with other applicable sections of this code;
10.4.3 By providing a break (air pap) in the drain connection
on the inlet aide of the trap serving the fixture, device, annliance,
f or apparatus.
j 10.5 °eceQtors.
S 10.5.1 ns a anon.--Waste receptors serving indirect pipes
shall not be installed in any toilet room, nor in any Inaccessible
or unventilated apace such as a closet or storeroom.
10.5.2 fleanout locati.on.--If the indirect waste receptor is
set below floor level, it shall be equipped �,•ith a running trap set
adjacent to the sink with cleanout brought level with the floor.
10.`.3 Strainers and gaskets.--F.very indirect waste receptor
shall be equipped either ME—a readily removable metal basket over
which all indirect waste pipe shall discharge, or the indirect waste
receptor outlet shall he equipped with a beehive strainer not less
than 4 inches in height.
10.6.4 S lashing.--A11 plumbing receptors receiving the dis-
charge of ind rec vras a pipes, shall be of such shape and capacity
as to prevent splashing or flooding. No plumbing, fixture which is
used for domestic or culinary purposes shall be used to receive the
discharge of an indirect waste pipe.
10.6 clear water wastes.
10.6.1 Waste lifts, expansion tanks, cooling jackets, sprinkler
systems, drip or overflow pans, or similar devices which waste clear
j crater only may. . discharge into a roof or into the building drainage
system through an indirect waste.
j 10.7 Condensers and sum s.
(} 10.7.1 o steam p pe s e connect to any part of a drainage
or plumbirg system, nor shall any water above 140°be discharged into
any part of a drainage system. Such pipes may be indirectly connect-
ed by discharging into an interceptor or into the drainage system.
10.8 Drinking fountains.
i 10.8.1 br..nklnp oun Tans may he installed with indirect wastes.
1 10.9 ecial wastes.
10.9.1�was�e, =Acid and 'chemical indirecr' waste pipes shall
be of materiels unaffected b- tho discharge of such wastes.
10.9.2 Neutralizing_device.--In no case shall corrosive liquids,
spent acids, or other arM u c em+cals which might destroy or injure
a drain, sewer, soil, or waste pipe, or which might create noxious or
toxic fumes, discharge into the plumbing system without being thorough-
ly diluted or neutrali.zed by nassing through a properly constructed
and acceptable dilution or neutralizing device. rush device shall be
automatically provided with a sufficient intake of diluting water or
neutralizing medium, so as to make its contents nonin,iurious before
being discharged into the soil nr sewage s!,stem.
10.10 Swimming pools.
10.10.1'g p ng carry ne, waste water from swimming or wading
pools including pool drainage; back wash from filters, or water from
scum meter drains or floor drains which serve walks around pools,
shall be installed as an indirect waste pipe utilizing any existing
circulation pump, if necessary, when indirect waste pipe is below the
sewer grade.
CHAPTER 11
t
WATET? SIT^PLY AND DISTPIBNTION
11.1 Qualitv of_water sully.
11.1.1 Potable wa er o a e water is water which is satis-
factory for drinking, cu nary, and domestic purposes, and meets the
requirements of the health authority having juriddiction.
11.1.2 Acceptable sources.--Where a public supply of potable
I
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{
water is not available, requirements satisfactory to the administra-
tive authority shall be observed.
11.1.3 Nonpotable water.--Nonpotable water may be used for
flushing water closets an ur nals and other fixtures not requiring
notable water, provided such water shall not be accessible for drink-
{ Inp or culinary purposes.
{ 11.2 Color code.
11.2.1 indentific ation of i in .--All pipinv conveying non-
potable water shall e a aqua e y an urably identified by a distInc-
tivo yellow-colored paint so that it is readily distinguished from
piping carrying potable water.
11.3 Water au 1 mandator .
i 11.3.1 cry u np n w c plumbing fixtures are installed
! and are for human occupancy or habitation shall be provided with an
i ample supply of pure and wholesome water.
11.4 Protection of otable wa�ter�a__upply_
11.4.1 dross-connect ens.-- otable w -supply piping, water
1 discharge outlets, backfl ow prevention devices, or similar equipment
shall not be so located as to make possible their submergence in any
contaminnted or polluted liquid or substance. Devices installed in
a potable vrater-supply system for protection against backflow shall
i be maintained In good working condition by the person or persona
having control of such devices. The administrative authority having
jurisdiction may inspect such devices and if found to be ineffective
or inoperative shall require the repair or replacement thereof.
11.4.2 Backflow.--The water-distributing system shall be pro-
tected against ac ow. Every water outlet shall be protected from
backflow, preferably by having the outlet end from which the water
flows spaced a distance above the flood-level rim of the receptacle
into which the water. flows sufficient to provide a "minimum required
air pap" Where it is not possible to provide a minimum air gap, the
water outlet shall be equipped with an accessibly located backflow
preventer installed on the discharge side of the manual controi•valve.
11.4.:z Special devices.--Where it is not possible to provide
either a minimum air gap or a backflow nreventer, as may be the case
in connection with cooli.np jackets, condensers or other industrial
or special appliances; the Administrative Authority shall require
I other approved means of protection.
I 11.5 Vacuum breakers and air a s,
i 11.5.1 us ome er.-- us ome cull be equipped with an ap-
proved vacuum realer.--The vacuum breaker shall be installed on the
discharge side of the flushing valve with the critical level at least
4 inches above the overflow rim of the bowl.
i 11.5.2 uahI! tanks.--Flushing tanks shall be equipped with
an approved ba Fl -cocc. a all-cock shall be installed with the
j critical level of the vacuum breaker at least 1 inch above the full
opening of'the overflow pipe. In cases where the ball-cock has no
hush tube, the bottom of the water supply inlet shall be installed
! 1 inch above the full opening of the overflow pipe.
i 11.5.3 Trough urinals.--Trouph urinals shall be equipped with
a vacuum breaker tnstalled .on the discharge side of the last valve
and not less' than 30 inches above the spray pi.po.
11.5.4 Law, s rinklers.--Lawn-sprinkler systems shall be equip-
s ped with a baaTc3`low graven er on the discharge side of each of the
last valves. The backflow preventer shall be at least 6 inches above
the highest head, and at no time less than 6 inches above the surround-
inp ground. Where combination control vslvos and backflow preventers
are installed, the bottom of the valve shall constitute the bottom of
the backflow preventer.
11.5.5 Valve outlet.--Fixtures with hose attachments shall be
i protected by a backflow preventer installed 6 inches above the high-
est point of usage and on the discharge side of the valve.
11.5 Water-service pipe.
11.6.1 �xcept as nerm wed in paragraph 11.6.2, the underprourd
water-service pipe and the building drain or building sewer shall be
not less than 10 feet apart horizontally end shall be so separated by
undisturbed or compacted earth.
11.6.2 'rho water-service pipe may t!o placed in the same trench
with the building drain and building sewer provided the following
conditions are met:
The bottom of the water-service pipe, at all points, shall be at
least 12 inches above the top of the sewer line at its highest point.
The Ovate—service pipe shall be placed on n solid shelf exeavat-
ad at one side of the cormnon trench.
The number of joints in the service pipe shall be kept at a min-
.23-
i
The materials and 'joints of sewer and water-service pipe shall
be installed in such manner and shall possess the necessary strongth
and durability to prevent the escape of solids, liquids, and gases,
therefrom, under all known adverse conditions such as corrosion, str-
ains due to temperature changes, settlement, vibrations, and super..
Imposed loads.
11.6.3 Stop-and-waste valve combination.--Combination atop-and-
waste valves ar.d cocks shall not be installed n an underground ser-
vice pipe.
11.6.4 Private w ter 1 --No private water supply shall be
interconnected with .any pu au c wa er supply without the specific ap-
proval of the Department of Health.
11.7 Water pumping and storage equipment.
11.7.1 F
UTF
and other a p. ances.--Plater pumps, tanks, filters,
softeners, and aA other appliances and devices shall be protected
against contanination.
11.7.2 Water-supply tanks.--Potable-water-supply tanks shall. be
properly covered to prevent the entrance of foreign material or in-
sects into the water supply. Soil -or waste lines shall not pass dir-
ectly over such tanks.
11.7.3 Treasure tanks, boilers, and relief valves.--The drains
from pressure tan eerier, relied` valves, and similar equipment
shall be connected to the drainage system through an indirect waste.
i 11.7.4 Cleanin aintin repairing water tanks.--A potable-
water-supply an use or omen c purposes shall not be lined,
painted, or repaired with any material which will affect either the
j taste or the potability of the water supply when the tank is returned
II to service. Tanks shall be disconnected from the system during such
operations, to prevent any foreign fluid or substance from entering
the distribution piping.
11.8 Water-supply tanks (house-auction booster).
11.8.1 wen re u re on a water pressure rom the city
1 mains- during ow s nsu icient to supply all fixtures freely and
continuously, the rate of supply shall be supplemented by a gravity
house tank or booster system.
11.8.2 Su port._--All water-supply tanks shall be supported in
accordance with the uilding code or other regulations which apply.
11.8.3 Overflow pi es for Ovate gsupply tanks„--Overflow pipes
for gravity tents sial7isc ergs a ova an within 6 inches of a
roof or catch basin, or they shall discharge over an open, water-
supplied sink. Adequate overflow pipes properly screened against
the entrance of insects.and vermin shall be provided.
11.8.4 Tank sup_n_1y.--The water-supply inlet within the tank
I
hall be at an a e—1 vat3-on not less than is required for an air pap
in an open tank with overflow, but in no case shall the elevation
be less than 4 inches above the overflow.
11.8.5 Drains.--Water-supply tanks shall be provided with
valved drain nes ocated at their lowest point and discharged as
an indirect waste or as required for overflow pipes in paragraph
11.4.3.
11.8.6 Size of overflow.--Overflow drains for water supply
tanks shall not be less an the following:
Drain pipe Tank capacity Drain pipe Tank Capacity
(inrhe. (fallons) (inches) (Fallonn)
1............. Up to 750 2j.... ..... 3,001 to `,000
1 ............ 751 to 1,FO00 3............ P,001 to 7,500
2............. 1,501 to ;,000 4... ...... Over 7,F0O.
Each drain line shall be equipped with a quick-openinp value
of the same diameter as the pipe.
11.8.7 Gravity and suction tanks.--Wanks used for domestic
water supply, com ne sunny o re standpipe s. and domestic wator
system, or.to supply standpipes for fire-fighting equipment only,
shall be equipped with tipht covers which are vermin and rodent
proof. Such tanks shall be vented with a return bend vent pipe hav-
ing an area not less than one-half the area of the down feed riser
and the vent openinp shall be covered with a metallic screen of not
less than 100 mesh.
11.8.8 Pressure tanks.--Pressure tanks used for supplying water
-24-
to the domestic water distribution system, combined supply to fire
stand-pipes and domestic water ayetem, or to supply standpipes for
i fire equipment only, shall be equipped with a vacuum-breaking dev-
ice located on the top of the tank. The air inlet of this device
shall be covered with a metallic screen of not lane than 100 mesh.
11.9 Dieinfectlon of otable water a stem i i
} 11.9.1 e a n s ra ve au or y v ng. ur a iotion shall
require when necessary that the potable-water system or any part
thereof installed or repaired be disinfected in accordance with one
of the following methods before it is placed in operation.
11.9.2 The system, or part thereof; shall be filled with a sol-
ution containing 50 parts per millior of available chlorine and All-
owed to stand 6 hours before flushing and returning to service.
11.9.3 The system, or part thereof, shall be filled with a sol-
ution containing 100 parts per million of available chlorine and all-
owed to stand 2 hours before flushing and returning, to service.
11.9.4 In the case of potable-water storage tank where it is
i not possible to disinfect as provided in paragraphs 11.9.2 and 11.9.3
j the entire interior of the tank shall be swabbnd with a solution con-
taining 200 parts per million of available chlorine and the solution
allowed to stand 2 hours before flushing and returning to service.
11.9.5 In the case of potable-water filters or similar devices,
the dosage shall be determined by the administrative authority.
r ll.lb water-distribution_pi_pe� tubing and fittings.
I 11.10.1 er�als�'or wa ar-%Er Tu ng pipes and tubing shall
be brass, copper, lead, cast iron, wrought iron, open-hearth iron, or
J steel, with appropriate approved fittings. All threaded ferrous pipe
and fittings shall be.galvanized- (zinc-coated) or cement lined. When
used under-ground in corrosive soil, all ferrous pipe and fittings
shall be coal-tar enamel coated and the threaded joints shall be coat-
ed and wrapped after installation.
# 11.11 Allowance for character of water.
11.•11.1 Selection o materials.-79en selecting the material
and size for wa or-supp y pipe, tubi ng, or fittings, due consideration
shall be given to the action of the water on the interior and of the
soil, fill, or Ether material on the exterior of the pipe. No material
that would produce toxic conditions in a potable-water-aupply system
iI shall be used for piping, tubing, or fittings.
i 11.11.2 Used piping.--No piping material that has been used for
other than a po a e-wa r-supply system shall be reused in the pot-
able-water-supply system.
11.12 Water-su 1 contron ol.
11.12.1 a er-eu c 7191.--A main shut-off valve on the
water-service pipe shall e provided near the property line and, an
accessible shut-off valve with a drip valve shall be provided inside
near the entrance of the water-service pipe into the building.
11:12.2 Tank controls.--Supply lines taken from pressure or
gravity shall be v
controls tfor each famil sunk?--In two-family
or multiple dwellings, each family un s a e controlled by an
arrangement of shut-off valves which permit each group of fixtures or
the individual fixtures to be shut off without interference with the
water supply to any other family unit or other portion of the build-
ing.
• 11.12.4 Orou fixtures.--A group of fixtures means two or more
fixtures ad1acen or near 'ac other. In a one-family house one or
two bathrooms adjacent or one over the other may be considered a group.
11.12.5 Buildin s other than dwellings.--In all buildings other
than dwellings s F_t-o. valves she be installed, which permit the
water supply to all equipment in each separate room to be shut off
without interference with the water supply to any other room or port-
ion of the building.
11.12.6 Water heatij . a ui ment.--A shut-off valve shall be
provided in the co -wa ar rnnc line to each water-storage tank or
each water heater.
11.12.7 Shut-off valve at meter.--The shut-off valve at the dia-
charge side of the water me er s a e not leas in size than the
size of the building water service.
11.12.8 All valves used ir.water supply systems shall be design-
ed for a working pressure of 125 psi. All water supply control valves
shall be as large as the pipe on which it is installed. No valves
with reducing outlets shall be used.
11.13 Water-au 1 distribution.
11.13.1 a er-sery ce e.-- he water-service pipe from the
street main to a wa er- a r. ution system for the building shall
.25-
be of sufficient size to furnish an adequate flow of water to meet
'the require ants of the building at peak demand, and in no case be
leas then 3/4 inch nominal diameter.
If flushometers or other devices requiring it high rate of water
flow are used, the water-service pipe shall be designed to supply
this flow.
11.13.2 Demand load.--The demand load in the building water-
supply system a a e aced on the number and kind of fixtures in-
stalled and the probable simultaneous use of these fixtures.
( 11.14 Procedure in sizing. the water distribution system of a
buildlr
i —1 H4.1' The sizing of the water distribution system shall con-
form to good engineering practice. Design factors used to determine
pipe sizes shall be adequate in the judgment of the administrative
authority. In all cases a 3/4" or larger cold water supply shall be
provided for the water heater. If a water softner is used the conn-
ections thereto shall not be smaller than the line on which the soft-
ener is connected. —
11.14.2 Size of fixture au 1 .--The mi•Xsimum size of a fixture
supply pipe she a ae o owe:
Pipe size
i Type of fixture or device: (inch)
Bath tube............................................ 1/2
Combination sink and tray.....................•••••• 3/2
Drinking fountain...................................
Dishwasher (domestic) 1/2
Kitchen sink, residential........................... 1/2
Kitchen sink, commercial............................ 3/4
Lavatory ........ �
.... ....... ................ 318
Laundry tray, 1, 2, or3compartments............... 1/2
Shower (single head) 1/2
Sinks (service, slop)............................... 1/2
Sinks, flushing rim................................. 3/4
Urinal (flush tank)...................6............. 1/2
Urinal (direct flush valve)........................• 3/4
Water closet (tank type).. ...
Water closet (flush valve type)..................... 1
Hose bibbs.......................................... 1/2
Wall hydrant.o...............o...................... 1/2
For fixtures not listed, the minimum supply branch may be made
the same as for a comparable fixture.
r
11.14.3 Minimum reseure.--Minimum, fairly constant, service
j pressure, at the point o out.(et discharge shall be not less than e
pounds per square inch for all fixtures except for direct flush-valves,
for-which it shall be not less than 15 pounds per square inch, and
except where special equipment is used requiring higher pressures. In
1 determining the minimum pressure, allowance shall be made for the pre-
ssure drop due to -friction lose -in the piping system during maximum
demand periods ks well ae head, meter, and other losses in the system.
11.14.4 Auxiliar ressure--Su lementar tank.--If the resid-
ual pressure in a sya em s e ow e a owe a minimum at the high-
est water outlet when the flow in the system Is at peak demand, an.
automatically controlled pressure tank or gravity tank shall be in-
stalled, of sufficient capacity to supply sections of the. building
which are too high to be supplied directly from the public'water main.
11.14.5 Loa reseure cut-off.--When• a booster pump is used on
an auxiliary pressure aye em tans the possibility exists that a press-
ure of 5 pounds per square inch or leas may occur on the suction side
( of the pump, there shall be installed a low-pressure cut-off on the
booster.pump to prevent the creation of negative pressures on the sue-
tion side of the water system. Other arrangements may be used if found
adequate and if approved as such by the administrative authority.
11.14.6 Variable street reasures.--When the street main has a
wide fluctuation n presaune ur ng the day, the water distribution
system shall be designed for minimum pressure available.
11.14.7 Hazard and noise.--Where water pressures are excessive,
air chambers or other approve mechanical devices shall be provided
to reduce water hammer or line noises to such an extent that no press-
ure hazard to the piping system will exist.
11.16 Hot-water distribution.--
! 11.16.1 Hot-water d r ut on i in .--The sizing of the hot-
water distribu on p p ng a a con orm to good engineering practice.
11.16 Safe! devices. f
11.16. eazure-re eY vales.--Pressure-relief valves shall be ;
i
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r.
1
inatallea for all equipment used for heating or storage of hot water.
The rate of discharpo of such a valve shall limit the pressure rise
for any given heat input to 10 percent of the pressure at which the
valvo is set to open.
11.16.2 To m erature-relief valvea.--Temperature-relief.valven
shall be inata a or a equ pmen used for the heating or storage
of hot water. Es ch valve shall be rated as to its B.t.u. capacity.
At 210 0F., it shall be capable of discharp:ing sufficient hot water to
prevent any further riso in temperature.
11.16.3 A_p�ro�vale.--Combination pressure and temperature-relief
valves or separa--pressure and temperature-relief valves which have
been tested and approved by,'or meet the specification requirements
of, the American bas Ansociation or the National Board of Casualty and
Surety Underwriters, shall be considered acceptable.
11.16.4 Relief-valve location.--Temperature-relief valves shall
be placed directly above taiNs served and in no case more than 3 in-
ches away from such tanks. Prossure-relief valves may be located ad-
jacent to the equipment they serve. There shall be no check valve or
shut-off valve between a relief valve and the heater or tank for which
It is installed.
11.16.5 Relief outlet wastes.--The outlet of a pressure, temper-
ature, or other relief valve shall not be connected to the drainage
system as a direct waste.
11.1b.6 Presaure markin. of store s tank.--Any storage tank here-
after installs or omea c o wa er a a clearly and Indel-
ibly stamped in the metal, or so marked upon a plate welded thereto
or otherwise permanently attached, the maximum allowable working press-
ure. Such markings shall be placed in an accessible position on the
3
outside of the tank sp as to make inspection or reinspection readily
possible.
j 11.17 Miscellaneous.
11.17.1 Drain cock.-,:-All storage tanks shall be equipped with
adequate drain coc-Re. `—
11.17.2 Line valves.--Valves in the water-supply distribution
system, except those immediately controlling one fixture supply, when
i fully opened shall have a cross-sectional area of the smallest orifice
or opening through which the water flows at least equal to the crovw-
sectional area of the nominal size of the pipe in which the valve is
installed.
i 11.17.3 Water used for rocessin..--Water used for cooling of
i equipment or similar purposes s a nine returned to the potable-
water distributing system. When discharged to the building drainage
f system, the waste water shall be discharged through an indirect waste
pipe or air gap.
CHAPTER 12
i
DRAINAGE SYSTEM
ti 12.1 Materials.
j 12.1.1 .enera .--Pipe, tubing, and fittings for drainage aya-
S terns shall comp-3y with the provisions in chapter 4.
12.2 Buildin sewer.
12.2.1 .e grate trenches.--The building sewer, when Installed
in a separate trench 1rom the water-service pipe, shall be cast-iron
sewer pipe, vitrified-clay sewer pipe, or asbestoa-cement mower pipe.
Joints shall be watertight and rootproof.
12.2.2 One trench.--The building sewer, when installed in the
scone trench wee waTer-service pipe shall be constructed of dur-
able materials which are corrosion-resistant and shall be so installed
as to remain watertight and be rootproof. The building aexei"ahall be
tested with a 10-foot head of water or equivalent and found to be
tight.
12.2.3 Sewer in fe illed round.--A building Bawer or building
drain installs n or una a ble Pround shall be of caat-iron
pipe, except that nonmetallic drains may be laid upon an approved
concrete pad if installed in accordance with paragraph 12.2.1.
12.2.4 Sanitar snd storm aewers.--Where aeparate systems of
sanitary drainage nn s orm ra nags are installed'in the 'stone prop-
erty, the sanitary and storm building sewers or drains may be la11
} side by side, in one trench.
12.2.5 Old house sewers and draina.--Old house sewers and house
drains may be used in connection with new buildings or new plumbing
and draina�o work only when they are found, on examination and;test
to conform in all respects to the requirements governing new house
' -27-
sewers, and the administrative authority shall notify the owner to
make the changes necessary to conform to this code.
12.3 Drains e i in. installation.
12.3.1 .or zontal ra na e n Horizontal drainage piping,
shall be insta e a , a un orm slope at slopes not lase than per-
mitted 1.n paragraphs 12.3.2, 12.3.3 and 12.3.4.
I 12.3.2 ma�ll�i�tn ..--Horizontal drainage piping of 3-inch dia-
meter and leas s9 11 be installed with a fall of not- less than one-
quarter inch per foot.
I 12.3.3
Large i in --Horizontal drainage piping of larger than
3-inch diame shall he 'installed with a fall of not less than one-
eighth inch per foot.
12.3.4 Minimum velocitv.--Where conditions do not permit build-
inp drains and sewers fu o raid with a fall as great as that specifi-
ed, then a lesser slope mny be permitted provided the computed velo-
city will be not less than 2 fps.
12.4 Fixture units.
12.4.1 -Values for ixtures.--Fixture-unit values as given in
table 12.4.2 designate the relative load weight of different kinds
of fixtures which shall be employed in estinnting the total load car-
ried by a soil or waste pipe and shall be used in connection with the
tables of sizes for soil, waste, and drain pines for which the per-
missible load is given In terms of fixture units.
Table 12.4.9 Fixture units ne.. fixture or group.
i
1
Fixture unit n mumsize
! Fixture type value as of trap
load factors (inches)
an wa er
1 bathroom group consisting of water closet... 6
closet, lavatory, and bath tub or Flush-valve
shower stall. water closets
P,athtub *1 (with or without over-
head shower)....................... 2 1
Bathtub *1.............. 3 2
Bidet.............................. 3 Nominal.... it
Combination sink and tray.......... 3 1, i
Combination sink and tray with Separate
food"disposal unit. a traps 1
Dental unit or cupidor�............ 1 1
Dental lavatory.. 1 1�
Drinking fountain......... .. 1 1
i Dishwasher,*2 domestic............. 2 1
Floor drains *3.... ...I.......... 1 2
Kitchen sink, domestic............. 2 1-r
Kitchen sink, with food-disposal
unit............................... 3 l
ILavatory ........................ 1 Small P.O. 1.
Do . .. ... ... .. ... 2 Large P.O. 1 i
Lavatory, barber, beauty parlor.... 2 1. i
Lavatory, surgeon's........ .... .. 2 1�
Laundry tray (1 or P compartment).. 2 la
Shower stall, domestic. . ....... 2 2
Phowers (group) per head *2 3
8inks:
Surgeon's...................... 3 11
Flushing rim (with valve)...... 8 3
Service (Trap standard). 3 3
Service (P trap). . ........ 2 2
Pot, scullery, etc. *2 4 12
Urinal, pedestal, syphon jet,
blowout............................ 8 Nominal.... 3
Urinal, wall lip. .. .............. 4 1
Urinal stall, washout.............. 4 2
Urinal trough *2 (each 2-Soot
section)..........................
2 1
Wash sink.*2 (circularor multiple
),
each set of faucets................ 2 Nominal.... 1i
Water closet:
Tank-operated.................. i} Nominal.... 3
Valve-operated................. J 3
i
*1 A shower head over a s u oes not increage the x ure
value.
-28-
++9 Fee pars. 19.4.3 and 12.4,4 for method of computing unit
value o+' fixtures not listed in table 12..4.9 or for rating of do-
vices with intermittent flows.
++3 Size of floor drain shall be determined by the area of
surface to be drained.
*4 Lavatories with 11-or 1t-inch traps have the same load
value; larger P.O. plugs have greater flow rate.
12.4.3 Fixtures not listed in table 12.4.2 shall be eetimsted
j in accordance with table 12.4.3.
3
TAPLF 12.4.3
i -
g
Fixture drain or Fixture Fixture drain or Fixture
! trap size unit value trap size unit value
P
1
11 inches and smaller 1 2J inches........ 4
14 inches.............. 2 3 i.nches........ 5
1 2 inches............... 3 4 inches......... 6
t
S
12.4.4 Values for continuous flow.--For a continuous or semi-
continuous flow into a drainage system, such as from a pump, pump
ejector, air-conditioning equipment, or similar device, two fixture
unite shall be allowed for each gallon-per-minute of flow.
19.E Determination of sizes for the drainage system.
u�re=uni'�Tad.= e man MA number of fix-
ture units that may be connected o a given size of building sewer,
building drain, horizontal branch, or vertical soil nr waste stack
is given in tables 12.F.2 and
(tee following page for tables 12.5..2 and, 12.5.3.)
12.F.4 Minimum size of soil and waste stacks.--No soil or
waste stock uhall be sma er an a largest no-rT—zontal branch con-
e netted thereto.
19.E.5 Mini.mum'size of stack-vent or vent stack.--Any struct-
ure on which a building drain is installed shall ave at least one
stack-vent or vent stock carried full size through the roof not lose
than 4 inches in diameter or the size of the building drain, which-
ever is the lesser.
19.5.6 Future Mixtures.--When provision is made for the future
Installation of x urea ose provided for shall be considered isi
determining the required sizes of drain pipes. Construction to pro-
vide for such future installation shall be terminated with a plugged
fitting or fittings at the stack so as to form no dead end.
12.F;7 Under round drains e i in..--No portion of the drain-
ape system ins a e un erpFoZi or below a basement or cellar shall
be less than 2 inches in diameter.
12.6 Offsets on drains e i i
j 12.6.1 Offsets o or sae.--An offset in a vertical stack,
with a change of rec on of 45 or less from the vertical, may be
sized as a straipht vertical stack. In case a horizontal branch
F connects to the stack within 2 feet above or below the offsets a j
relief vent shall bA installed In accordance with nararraph :M 1,9U5%
12.6.2 Waste stacks servin kitchen sinks.--In a one-or two-
family dwelling on y n , c e waste sEacK or vent receives the
discharge of a kitchen-type sink and also serves as a vent for fix-
! tures connected to the horizontal portion of the branch served by
the waste stack, the minimum size of the waste stack up to the high-
eat sink branch connection shall be 2 inches in diameter. Above
that T)oint the size of the stack shall be governed by the total num-
ber of fixture units vented by the stack.
19.6.3 Above hi hest branch.--An offset above the highest
horizontal branc s an o fraet in the stack-vent and shall be con-
sidered only as it affects the developed length of.the vent.
12.6.4 Below lowest branch.--In the case of an offset in a
soil or waste stack a ow a owest horizontal branch, no change
In diameter of the stack because of the offset shall be required
if it is made at an angle not greater than 45: If such an offset
is made at an angle greater than 45, the required diameter of the
offset and the stack below it shall be determined as for a build-
inp drain.
j 12.6.E Offsets of more than 4E:--A stack with an offset of
( more than 45° roe trie ver ca s a e sized as follows:
The portion of the stack above the offset shell be sized as
( -29-
for a regular stock based on the total number of fixture units
above the offset.
The upper portion of the stack above the offset shall be
sized as for a building drain.
The portion of the stack below the offset shall be sized as
for the offset or based on the total number of fixture units on
the entire stack, whichever is the larger.
A relief vent for the offset shall be installed as provided
In chapter 12 and in no case shall fhe horizontal branch connect
to the stack within 2 feet above or below the offset.
i
TABLE 12.5.2 WILDING DRAMS AND 3"MrS
Maximum number of fixture units that may be
Dianetor of pipe connected to any portion *1 of the build-
; (inches) ing drain or the building sewer
Fall per foot
1/16-inch 1/8-inch 1/4-inch 1/2-inch
i
2................... .......... ......... 21 26
23-1.................. ......... ... 24 31
................... .......... �20e`• 27 *2 36 *2
4................... .......... 180 216 250
5........:.......... .......... 390 480 575
6................... .......... 700 840 1,000
8.................... 1,400 1,600 1,920 2,300
...... 2,500 2,900 3,500 4,200
12.................. 3,900 4,600 5,600 6,700
j *1 Includes branches of the building drain.
*2 Not over 9 water closets.
TABLE -1P.15.3 HORIZONTAL FIXTURE BRANCHES AND STACKS
+
Vaximum number of fixture units that may be
connected to---
Diameter of pipe 1 stack More than 3 stories
(inches) Any hors; of 3 in height j
zontal 1 stories
fixture in motel at 1 i
branch height Total
or .3 for story or
intervals stack branch
interval
S
1 .................. 1 2 2 1
......... 3 4 8 2 !
2................... 6 10 24 6 1
2 .................. 12* 20* 42* r
.............. 20 2 ?0 3 60 16 16*2
4................... 160 240 500 90
F................... 360 540 1,100 200
6................... 620 960 1,900 350
8................... 1,400 2,200 3,600 600
10.................. ?,F00 3•,800 5,600 1,000
12.................. 3,900 6,000 8,400 1,500
3. Poes -hot Include branches o the bulldtnp ra n.
*2 Not over 2 water closets.
3 Not over 6 water closets.
i
12.7 Sums and ejectors.
12.7.1 Ruildinf, arains below sewer.--Building, drains which can-
-30-
not he discharged to the sewer by gravity flow shall be discharged
into n tiphtly covered and vented sump from which the liquid :hall
be lifted and discharged into the building, gravity drainage system
by automatic pumpinp equipment or by any equally efficient method
I approved by the administrative Authority.
12.7.2 Stora.e eriod.--The storage of drainape in•a sump or
ejector shall not excel a poriod of 12 hours.
12.7.? Deai n.--Sump and pumping equipment small be so deaign•.
ad as to disc arge all contents accumulated in the sump during the
cycle of emptying operation.
12.7.4 .Vontin .--The system of drainage piping below the sower
level shall be ..ns a led and- vented, in a manner similar to that of
the gravity system.
19.7.E T !plex a ui ment.--Sumps receiving the discharge of more
than six water c ose s s s 11 be provided with duplex pumpinp equip-
meat.
! 12.7.6 Vent sizes.--Eullding sump vents shall be sized in ac-
cordance with tab o 1`3.2D.5 but shall in no case be sized lees than
1� inches.
j 12.7.7 �Separate vents.--Vents from pneumatic ejectors or simi-
lar equipment sliall be car r ed separately to the open air as a vent
terminal.
12.7.8. Connections.--No direct connection of a steam exhaust,
j blowoff, br drip pipe she 1 be made with the building drainage system.
Waste water when discharged into the building drainage system shall
be at a temperature not hipper than 140'F. When higher temperature
! exists, proper cooling methods shall provided.
t 12.8 Floor drains.
12.8.1 Access it .--Floor drains shall connect into a trap
j so eonstruete t a t can be readily cleaned and of a size to serve
efficiently the purpose for which it is intended. The drain inlet
shall be so located that it is, at all times, in full view.
12.8.2 Conne.ctions.--Floor drains subject to backflow shall
not be direct y conned a to the drainage system.
12.8.3 Provision a for eva oration.--Flcor-drain trap seals sub-
ject to evaporat on s e o he deep-seal type or shall be fed
from An Approved plumbing fixture or by means of an approved auto-
] matie priming device designed and approved for that purpose.
1 12.8.4 Size.--Floor-drain traps and drains, installed below a
baeement floor or underground, shall be .not less than 2 inches in
diameter.
12..A.5 Fell tra s.--Hell traps are prohibited.
} 12.9 Fros ro ec ion.
12.9.1 NO soil or waste pipes shall be installed or permitted
outside of a building, or concealed in outside walls or in any place
where they may be subjected to freezing temperatures, unless adequate
provision is made to protect them from frost.
12.10 Waste lines material shall extend to a point 6^ above
the flood line of the fixture it serves.
i
f CHAPTER 13
'r
VENTS AND VENTING
13.1 Materials.
1?.1.1 ern Es:-Pipe, tubinp,, and fittings for the vent piping
system shall coo—mp y with the provisions in chapter 4.
17.2 Protection of tra seals.
13 P.1 ra s ro ec a .--. a protection of trap seals from sip-
honage or bac pressuro s a be accomplished by the appropriate use
j of soil or waste stacks, vents, revents, back vents, loop vents, cir-
cuit or continuous vents, or combinations thereof, installed in ace-
; ordance with the requirements of this chapter.
13.3 Vent stacks.
13.3.1 nsta at on.--A vent stack or a main vent shall be In-
stalled with a so To r waste stack whenever back vents, relief vents,
t or other branch vents are required in two or more branch intervals.
13.3.2 Terminal.--The vent stack shall terminate independently
j above the roouilding, or shall b e connected with the exten-
sion of the soil or waste stack (stack-vent) at least 6 inches above
the flood-level rim of the highest fixture.
13.3.3 Vain stack.--Every building in which plumbing is install-
( ed shell have a sal one main stack, which shall run undiminished
in'size and as directly as possible, from the building drain through
to the open air above the roof.
-31-
1 13.4 Vent terminals.
13.4.1 Hoof ex ens on.--Extensions of vent pipes through a
i roof shall be •rm na • at least 6 inches above•it.
13.4.E Roof garden.--Where a roof is to be used for any pure
pose other than weather protection, the vent extensions shall be
run at least b feet above the roof.
13;4.3 FP�l�aass�h__i�nngg_s.--Each vent terminal shall be made watertight
with this rooter flashing.
13.4.4 F_lag poling.--Vent terminals shall not be used for the i
purpose of agfi poling,—TV aerials, or similar purposesp except
when the piping has been anchored to the construction and approved
as safe by the Plumbing Inspector.
13.4.5 Location,of vent terminal.--No vent terminal from a ;
drainage system shall e directly beneath any door, window, or other
ventilating opening of the building or of an adjacent building nor
i shall any such vent terminal be within 10 feet horizontally of such
an opening unless it is at least 2 feet above the top of such open-
ing.
13.4.6 Extensions throu h wall.--Vent terminals extending thr-
ough a wall,when perm a Fie administrative authority shall
be at least 10 feet horizontally from any lot line. They shall be
turned to provide an opening downward. They shall be effectively
screened and shall most the requirements of paragraph 13.4.5. Vent
terminals shall not terminate under the overhang of the building.
13.4.7 Extensions outside buildi --No Boil, waste, or vent
pipe extension shall e run or p ace on the outside of a wall of
any new building, but shall be carried up inside the building.
13.5 Vent grades and connections.
13.5.1 Grade.--All vent and bra-n—ch-vent pipes shall be so grad-
ed and connected as to drip back to the soil or waste pipe by gravity.
13.5.2 Vebtical rise.--Where vent pipes connect to a horizontal
soil or waste pipe, the vent shall be taken off above the center lino
of.the soil pipe, and the vent pipe shall rise vertically, or at an
angle not more than 45 from the vertical, to a point at least 6 in-
chee above the flood-level rim of the fixture It is venting before
offsetting horizontally or before connecting to the branch vent.
i 13.5.3 Height above fixture.--A connection between a vent pipe
and a vent stack or stack-vent Fiall be made at least 6 inches above
the flood-level rim of,the highest fixtures served by the vent. Hor-
izontal vent pipes forming branch vents, relief vents, or loop vents
shall be at least 6 Inches above the flood-level rim of the highest
fixture served.
13.5.4 Side inlet.--Side-inlet closet bends are premitted only
In cases whore�Fe—fUTure connecting thereto is vented and in no
i case shall the inlet be used to vent a bathroom group without being
washed by a fixture.
13.6 Bars and soda-fountain sinks.
13.6.1 Bar and fountain-yink raF�s.__--Traps serving sinks which
are part of a equipment o Bars, 110 a untainB, and counters need
not be vented when the location and construction of such bars, soda
fountains, and•countere are such as to make it impossible so to do.
i When such conditions exist, such sinks shall discharge into a floor
sink or hopper which Is properly trapped and vented.
13.6.2 Sumps•--Sinks or sumps, receiving indirect waste, shall
be located in a properly lighted and ventilated apace.
13.7 Fixtures back-to-back.
13.7. Dintance.--Two fixtures set back-to-back, within the
distance allows a een a trap and its vent, may be served with
one continuous soil or waste-vent pipe, provided that each fixture
wastes separately into an approved double fitting having inlet open-
i ings at the same level.
13.8 ' Fixture vents.
13.8.2 Matanca o tra from vent.--Each fixture trap ahall
have a protec ng ven so oca a hat the elope and the developed ;
lenght in the fixture drain from the trap weir to the vent fitting
f are within the requirements set forth in table 13.8.3„
f 13.8.2 Tra -seal rotection.--The plumbing system shall be pro-
vided with a sys em , vent piping which will permit the admission i
or emission of air so that under normal and intended use the Beal i
of any fixture trap shall not be subjected to a pressure differentail
of more than 1 inch of water. (See following page for table 13.8.3)
13.8.4 Trap dip.--The vent pipe opening from a Boil or waste
pipe, except off' r water closets and similar fixtures, shall not be
below the top weir of the trap.
s 13,8.5 Crown vent.--No back vent shall be installed within two
-32-
pips diameters ox the trap weir.
TABLE 13.863 DISTANCE OF FIXTURE TRAP FROM VENT
Maximium Distance trap to
T slope, vent
Site of fixture drain in.
(inches) per foot
}i Feet Inches
j 1 .............................. " 2 8
n i
2................................ " b 0
3................................ " 8 0
{ 4................................ " 10 0
i
13.9 Common vent.
13.9.1 individual vent.--An individual vent, installed vert-
ically, may be used as a common vent for two fixture traps when
1 both fixture drains connect with a vertical drain at the same level.
13.9:2 Common vent may be used for two fixtures set on the
same floor level but connecting at different levels in the stack,
provided the vertical drain is one pipe diameter larger than the
upper fixture drain but in no case smaller than the lower fixture
drain, whichever is the larger and that both drains conform to table
13.8.3
} 13.10 Vents for fixture bra below tra di
i 13.10.1 rau c ra en x ure rn na shall be vented
within the hydrau c gra en a een the trap outlet and vent con-
nection, but in no case shall the unvented drain exceed the distance
( provided for in table 13.8.3.
13.10.2 Different levels.--If any stack has fixtures entering
at different levels, the x urea other than the fixture entering
! at the highest level shall be vented, except as may be permitted in
other sections of this chapter.
13.11 Wet ven__t__i___ngg_.
3
13 11.1 -'letiithroom groups.--A single bathroom group of
fixtures may be in�ied airn the rain from a back-vented lavatory,
kitchen sink, or combination fixture serving as a wet vent for a
bathtub or shower stall and for the water closet, provided thats
} (a) Not more than one fixture unit is drained into a li-inch-
diameter wet vent or not more than four fixture units drain
Into a 2-inch-diameter wet vent.
(b) The horizontal branch connects to the stack at the aame
i level as the water-closet drain or below the water-closet drain
when installed on the top floor. It may also connect to the
water-closet bend.
13.11.2 Double bath.--Bathroom groups back-to-back on top
floor consisting of wo 1 aystories and two bathtubs or shower stall#
may be installed on the same horizontal branch with a common vent
j for the lavatories and with no back vent for the bathtubs or shower
stalls and for the water closets, provided the wet vent is 2 inches
in diameter, and the length of the fixture drain conforms to table
13.8.3.
T 13.11.3 Multistor bathroo rou e.--On the lower floors of
a multistory bu ng, m a was e pipe from one or two lavatories
may be used as a wet vent for one or two bathtubs or showers provid-
ed thats
(a) The wet vent and its extension to the vent stack is 2 inch-
ss in diameter.
(b) Each water closet below the top floor is individually
back vented.
(c) The vent stack is sized as given in table 13.11.3.
(See following page for table 13.11.3)
13.11.4 Excetion�.--In multistory bathroom groups, wet vented
f in accordance wi paragraph 13.11.3, the water closets below the
top floor need not be individually vented if the 2-inch waste con-
s nects directly into the water-closet bend at a 45 angle to the hori-
zontal portion of the bend inthe direction of flow.
t 13.12 Stack ventin
i
13 ML a _oo��m__ggrr�oup.�'.--Except as indicated in paragraph
13.12,2, n group of xx ureaisting of one bathroom group and
3
-33- f
a kitchen sink or combination fixture, may be installed without
individual fixture vente, in a onn-story building or on the top
floor of a building, provided each fixture drain connects indep-
endently to the stack and the Mater closet and bathtub or shower-
! stall drain enters the stack at the same level and in accordance
IIII with the requirements in table 13.6.3.
TABLE 13.11.3 SIZE OF VENT STACKS
Diameter of
Number of wet-vented fixtures vent stacks
(inches)
1 or 2 bathtubs or showers...................... 2
3 to 5 bathtubs or showers...................... 2
6 to 9 bathtubs or showers...................... 3
10 to 16 bathtubs or showers.................... 4
13.12.2 Overtaxed sewers.--When a sink or combination fixture
connects to the stack-vents athroom group, and when the street
sewer is sufficiently overloaded to cause frequent submersion of
the building sewer, a relief vent or back-vented fixture shall be
connected to the stack below the stack-vented water closet or bath-
tub.
13.13 Individual fixture reventin .
! 13.13.1 Horizontal ranc es.-- ne ;ink and one lavatory, or
three lavatories within 8 fe-e-Y-Us—voloped length of a main-vented
line may be installed on a 2-inch horizontal waste branch without
reventing, provided the branch is not less than 2 inches in diameter
throughout its length, and provided that the wastes are connected
Into the aide of the branch leads to its stack connection with a
slope of not more than one-fourth inch per foot.
13.13.2 Where re uired.--When fixtures other than water closets
discharge downs ream rom a water closet, each fixture connecting
f downstream shall be individually vented.
13.13.3 Limits of fixture unite above bathtubs and water closets
{ A fixture or combination of x urea whose total discharge rating e
i not more than three fixture units may discharge into a stack not less
than 3 inches in diameter without reventing, provided such fixture
! connections are made above the connection to the highest water closet,
or bathtub T-Y, the fixture-unit rating of the stack is not other-
wise exceeded, and their waste piping is installed as otherwise re-
quired in paragraph 13.13.1.
13.14. Circuit and loop ventin .
13.14.1 Patter ven n�-- ranch soil or waste pipe to which
two but not more an c_g aster closets (except blow-out type),
pedestal urinals, trap standard to floor, shower stalls, or floor
drains are connected in battery, shall be vented by a circuit or loop
vent which shall take off in front of the last.fixture connection.
i In addition, lower-floor branches serving more than three water clo-
sets shall be provided with a relief vent taken off in front of the
first fixture connection. When lavatories or similar fixtures die-
charge above such branch, each vertical branch shall be provided
with a continuous vent.
13.14.2 Dual branches.--When parallel horizontal branches serve
a total of eight water c osete (four on each branch), each branch
shall be provided with a relief vent at a point between the two most i
distant water closets. When other fixtures (than water closets)
discharge above the horizontal branch, each such fixture shall be
vented.
13.14.3 Vent Connections.--When the circuit, loop, or relief
vent connections are taken o the horizontal branch, the vent branch
connection shall be taken off at a vertical angle or from the top of
the horizontal branch.
13.14.4 Fixtures back-to-back in batter .--When fixtures are
connected to one horizontal ranc roug a ouble Y or a eanitary
T in a vertical position, a common vent for each two fixtures back-
to-back or double connection shall be provided.. The common vent i
shall be installed in a vertical position as a continuation of the
double connection.
13.15 Pneumatic e�ectore. '
13.15.1 lief a ven s rom a pneumatic effector shall not be
connected to a fixture-branch vent but shall be carried separately
+34-
to a main vent or atack-vent or to the open air.
13.16 Relief vents.
13.16.1. Stacks of-more than 10 branch intervals.--Soil and
waste stacks in u ngs av ng mars an branch intervals shall
be provided with a relief vent at each tenth interval installed, be-
ginning with the top floor. The rise of the relief vent ehall•be
equal to the size of the vent stack to which it connects. The lower
end of each relief vent shall connect to the soil or waste stack
through a Y below the horizontal branch serving the floor and the
upper and shll connect to the vent stack through a Y not lees than
3 feet above the floor level
13.17 Offsets at an angle leas than 4b°from the horiaontal
In buildin a o3`- v3'� a or more a or lea.
se
vents.--Offse=ess than 45 6from the horizon-
tal, in�a soil or waste a k, except as permitted in chapter 12,
section 12.6 shall comply with paragraphs 13.17.2 and 13.17.3.
13.17.2 Spar t! ventin .--Such offsets may be vented as two
r separate soil or was e e aces, namely, the stack section below the
offset and the stack section above the offset.
13.17.3 Offset reliefs.--Such offsets may be vented by install-
ing a relief vent as a vertical continuation of the lower section
of the stack or as a side vent connected to the lower section between
the offset and the next lower fixture or horizontal branch. The up-
per section of the offset shall be provided with a yoke vent. The
diameter of the vents shall be not less than the diameter of the main
vent, or of the soil and waste stack, whichever is the smaller.
13.18 Main vents to connect at base.
13.38.1 ma n vents or vent stacks shall connect full site
1 at their base to the-building drain or to the main soil or waste
pipe, at or below the lowest fixture branch. All vent pipes shall
extend undiminished in size above the roof, or shall be reconnected
with the main soil or waste vent.
13.19 Vent headers.
! 13.19:..1 Connec ons of vents.--Stack-vents and vent stacks may
i be connected Into a common vent header at the top of the stacks and
then extended to the open air at one point. This header shall be
sized in accordance with the requirements of table 13.,20.5, the num-
ber of units being the sum of all units on all stacks connected there-
to and the developed length being the longest vent length from the
intersection at the base of the most distant stack to the vent ter-
minal in the open air as a direct extension o1' one stack.
13.20 Size and le ven th of vents.
13.20.1 en o a ac e.--The length of the vent stack
or main vents a be to developed length from the lowest connect-
; ion of the vent system with the soil stack, waste stack, or building
drain to the vent stack terminal, if it terminates separately in the
open air, or to the connection of the vent stack with the stack-
vent, plus the developed length of the stack-vent from the connect-
ion to the termainal in the open air, if the two vents are connected
together with a single extension to the open air.
13.20.2 Size of individual vents.--The diameter of an indivi-
dual vent shall be not loss than lt inches nor less than one-half
the diameter of the drain to which it is connected.
13.20.3 Size of relief vent.--The diameter of a relief vent
shall be not less than one- e e diameter of the soil or waste
branch to which it is connected.
13.20.4 Size of circuit or loo vent.--The diameter of a air-
suit or loop vent shall e no esa an one-half the size of the
diameter of the horizontal soil or waste branch or the diameter of
the vent stack, which ever is smaller.
13.20.5 Size of vent ipin�--The size of vent. piping shall
be determined-rom 3�£Fi and the total of fixture units coa-
nected thereto, as provided in table 13.20.5. Twenty per cent of
the total length may be installed in a horizontal position.
(See following page for table 13.20.5).
13.21 Future vent to be --A revent pipe of not less
than 2" diems or a e A a an same left wt least 2" and
not more than 4" below top of first floor Joists. An appropriate
i cap shall be provided.
1
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PLUMBING INSPECTOR
Section 272. PPluM_big d inspector.--The office of Plumbing
Inspector is hereby cre- ate iii
Section 273. Appointment.--The plumbing inspector shall
be appointed by the mayo�--, with the consent of a majority of the j
members of the city council, for a term of two years or until his
successor is duly appointed and qualified. He shall be appointed
on or befora the second regular meeting of the city council in
the year 1955 and every two years thereafter. In the event of
his death, resignation or removal from office, the mayor, with
the consent of a majority of the members of the city council, may
make an interim appointment of a qualified person to serve the
balance of the two-year term.
Section 274. Qualifications--The plumbing inspector shall
be over the age of wen y-one years. He shall be a person of good
moral character and physically able to carry out all of the pro-
! visions of Ordinance Number , known as the Plumbing Code. The
plumbing inspector shall have had six years of practical experience
In the plumbing trade, but shall not be actively engaged in the
plumbing business nor associated with the operations of any person,
j
firm, -or corporation engaged in the plumbing business.
,
Section 275. Bond.--He shall be required to give bond in the
sum of One thousand—(Pl—,000.00) Dollars conditioned upon the faith-
ful performance of his duties.
s
S Section 276. Duties.--It shall be the duty of the plumbing
inspector to enforce Me provisions of the Plumbing Code, identified
as Ordinance Number and to make all inspections that are re-
quired thereunder. The plumbing inspector shall also have the duty
to perform all tasks and services delegated to him by other ordin-
ances, the mayor or the city council, or the board of health.
Section 277. D�i__sposition of fee s,--All fees for plumbing j
5
inspections as are provid—iec- 03 ran—brdfnance Number , known
as the Plumbing Code, shall be collected by the plumbing inspector,
and said inspector shall issue receipts in duplicate, one to be
i given to the plumber paying the fee, and the other to be filed for
record with the city clerk. All fees collected shall be paid to
s the city clerk to the credit of the general revenue fund. ;
PTJTM aTNr..=R..
Section 11F3. Licenses and exmita.--No person, firm or corp-
s oration shall engage n e Fie Hess o plumbing in the city of
+ Jefferson unless licensed as a Master Plumber under the provisions
of this code. Business of Plumbing shall mean the supplying of
labor and material for plumbing work, to be done under the super-
vision of the person so supplying. No person, firm or corporation
shall cause any plumbing work to be done, altered or repaired by
an apprentice plumber unless the apprentice plumber is either
accompanied by or works under the direct supervision of a rertified
4 Master Plumber or a rertified Journeyman Plumber, except as provided
} in Section 1167.
Section 1154. Board of examiners.--There is hdreby created
} and established a Boarg or am nera o Plumbers. The said board }
} shall consist of three members, one of whom shall be chairman of
the Board of Health of the City of Jefferson, who shall be ex- j
officio chairman of said Board of Examiners of Plumbers; one of
whom shall be a Master Plumber actually engaged in the work of
plumbing, with five (5) years practical experience; and one of
whom shall be a Journeyman Plumber, actually engaged in the work S
of plumbing, with five (5) years
p practical experience; the last
two named members of the said board shall be appointed by the 1
! Mayor of the City of Jefferson, with the approval of the City }
i Council, within ten (10) days after the passage and approval of
this ordinance.
Section 11F5. The term of office and appointment shall be {
for a period of one. (1) year, and they shall serve without pay.
Section 1168. Meetings.--The board shall hold its first c
I
i
t
meeting not lose than ten (10) days following the adoption of this
ordinance. Thereafter, the board shall meet at such intervals an
may be necessary for the proper performance of its duties, but in
any case not lose than twice a year. Three members of the Board
of Examiners, the Chairman of the Board of Health (or an alternate
chosen by the Mayor from the City Council), the Master Plumber,
and the Journeyman Plumber must be present at every examination.
Section 1157. Examination.--The board shall establish stand-
ards and procedures n aci coordanco herewith for the qualification,
examination, and licensing of Master Plumbers and Journeyman Plumbers,
and shall issue an appropriate license to each person who meets the-
qualifications therfor, and successfully passes the examination
given by the board. Said examination shall be in two partai
(m) a test of knowledge of the theory of the trade;
(b) a teat of skill in the practice of the trade.
It shall be of practical and elementary character, but sufficiently
strict to teat the qualifications of the applicant. The board shall
keep an official record of all of its transactions.
I
Section 1158. Re-examinations.--Any person who fails to pass
an examination as prescribed y t e card may apply for re-examin-
ation after the expiration of one hundred and twenty (120) days
upon payment of a regular examination fee.
Section 1159. __Te�mppo�rar licenses.--The board may issue a
i temporary license as either as er Plumber or Journeyman Plumber
pending examination, provided the applicant holds a similar license
from a municipality having qualifications as strict or stricter
than those herein contained. Such permit shall be valid until the
date of the next examination and no longer.
Section 1160. A licant�a ualifications.--Applicants for
t Master Plumbers? licensee s a 1 g ve satin actory proof of two (2)
years practical experience as a licensed Journeyman Plumber.
Applicants for Journeyman Plumbers' licenses shall give satisfactory
proof of three (3) years practical experience as an apprentice
plumber under the supervision of a licensed Master Plumber.
1
Section 1161. A licationa contents.--Any person desiring
to be licensed as a as sr um er or as a Journeyman Plumber shall
make written application to the board for an examination. Such
application shall contain the name, business name, address and
experience of the applicant, and the type of license requested,
and shall be accompanied by a fee as follows; Master Plumber
License--85.00; Journeyman Plumber License--01.00. All fees re-
quired hereunder are not returnable.
Section 1162. Bond.--A person who has been issued a Master
i Plumber's license sha execute and deposit with the City of Jeffer-
son a bond in the sum of one thousand dollars (*1,000.00) with good
I and sufficient eocurity,approved by the Mayor, such bond to be o
conditioned that all plumbing work performed by the licensee or
ender hia, supervision shall be performed in accordance with the
j provisions of this code and that he will pay all fines and penalties {
properly imposed upon him for violation of the provisions of this ;
code. A Master Plumber's license shall not be valid unless a bond
Is executed and deposited as herein provided.
Section 1163. Renewal of licensee.--All licenses issued by
the board shall expire on ecem e�b r-31 off` the year in which issued
but may be renewed annually for an additional one year period upon
payment of fees in the amount of five dollars (*5.00) for Master
Plumbers and one dollar (81.00) for Journeyman Plumbers and re-
newal of bond as provided in section 1162 where necessary.
i
t Section 1164. Licensee aua�eneion or revocation.--The
Board of Health of tfie l'TE,o3' Orson may revoke or suspend
any license if obtained through nondisclosure, misstatement,
I or misrepresentation of a material fact. Any license may be
revoked by the Board of Health upon complaint by the Plumbing
� -2-
Inspector. Said complaint shall state with particularity the
reason for such revocation, and a fair and impartial hearing by
said Hoard of Health, after due notice to the Licensee against
whom complaint is made, shall be held not later than ten (10)
days after the filing of said complaint. Any person whose lio-
enee shall have been revoked as above provided shall not be per-
witted to apply for a re-issuance of said license, or any other
hereunder, for a period of one year after said revocation, and
then said license shall be re-issued only after an examination
as herein provided for applicants for licenses.
i
Section 1165 As si nment of lioense.--No person who has
obtained a plumbers 1'Icense s a allow his name to be used by
another person either for the purpose of obtaining permits, or
for doing business or work under the license, Every person lic-
ensed ahll notify the board of the address of his place of business,
if any, and the name under which such business is carried on and
{ shall give immediate notice to the board of any change in either.
r
Section 1166. Permits.--No plumbing work, unless excepted
an this section, shall be undertaken prior to the issuance of
permit therefor by the Plumbing Inspector. A permit shall be
issued to a licensed Master Plumber only except as provided in
Section 1187.
Section 1167. Owner residence ermite.--Any permit required
by this code may be ssue fo any person o do any work regulated
{ by this code in a single-family dwelling used exclusively for
living purposes, including the ususal accessory buildings and
i quarters in connection with such building. provided the person is
i the bons fide owner of such building, and that the,same will be
occupied by said owner and that said owner shall personally purchase
all material and perform all labor in connection therewith.
Section 1168. Application for permits.--Application for a
permit for plumbing.wor a a made on suitable forma provided
by the Plumbing Inspector. The application shall be accompanied
i by fees in accordance with the following schedule of fees.
Section 1168. Fees.--
FOR FEE
Each plumbing fixture or waste-discharging device with its
4
� waste, water and vent connection.......................... 01.00
New or reconstructed sewer connection..................... 1.00
construction or reconstruction of sewage soil absorption system
or sewage filter system................................... 1.00
Each septic tank.......................................... 1-.00
Each water heater or softene l+............................. 1.00
Each water-distribution system or service connection...... 1.00
? , Repair or alteration of any plumbing system................ 1.00
Any permit requiring inspection, minimum fee.............. 1.00
Section 1170. Fees for Inspection.--One dollar (*1.00) per
Item shall be charge or the first (25) items; for
each additional item over twenty-five (25) up to and including
fifty (150) items an inspection fee of seventy-five cents ('1;0.75),
and for each item over fifty (50) items, fifty-cents (40.50).
Section 1171. Plana and specifications.--No permit shall be
t issued until plans an�T apeci3'iea�'lone a ow ng the proposed work
in necessary detail have been submitted to the Plumbing Inspector
and he has determined from examination of such plans and apecifi-
cations that they give assurance that the work will conform to the
provisions of this ebde. If a permit is denied, the applicant may
f submit revised plans and specifications without payment of addition-
al fee. If, in the course of the work, it is found necessary to
j make any change from the plans and specifications on which a permit
{ has been issued, amended plans and specifications shall be submitted
and a supplementary permit, subject to the same conditions appli-
cable to original application fox- permit, shall be issued to cover
the change.
3
Section 1172. Permits not required for some repairs.-- Repairs
s
-3-
s
Involving only the working parts of a faucet or valve, the clear- 'q
ance of stoppage, repairing of leaks, or replacement of defective k.
faucets or valves may be made without a permit provided no changes ;
are made in the piping to the fixtures.
Section 1173. Rules and re ulations.--The City Council shall
make such rules and regu a one n urn erance of the purposes of
i this code and not inconsistent with the specific provisions thereof,
for the installation, repair, or alteration of air-conditioning "
systems, water-treatment equipment, and water-operated devices as tf
may be deemed necessary to properly protect the water-supply system. 4
! Section 1174. Plumbin ins ector's duties.--It aha7.1 be the I
R duty of the Plumbing napec or to en orce a provisions of this
code and to make the inspections required thereunder.
! Section 1175. Identification of ins actor.--The Plumbing j
Inspector shall propare an carry au c en entiPication and
shall exhibit same before entering any premises for the purpose
of inspecting any plumbing system at such times as may be reason-
ably necessary to protect the public health.
Section 1176. Plumbin to conform.--All new plumbing work,
and such portions of ex a ng aye ems as may be affected by new
work or any changes, shall be inspected to insure compliance with
allthe requirements of this code and to assure that the installation
jand construction of the plumbing system is in accordance with ap-
proved plans.
i
Section 1177. Notice for ins action.--It shall be the duty
of the holder of a per o give not ce o the Plumbing Inspector
when plumbing work is ready for inspection.
Section 1178. Plumbi violations notices.--Notice of vio-
lations shall be written and mai a or delivered by the Plumbing
j Inspector to the person responsible at the time inspection was
made.
Section 1179. Def�ectiv�e gllu_mbiinn .--Wherever the Plumbing
Inspector finds defect in any plumbing or drainage work done In
1 violation of the requirements of this or any ordinance in this
i city, he shall order the same to be taken out or corrected and
made to conform thereto. The Plumbing Inspector shall investigate
any cause of complaint entered at his office to the unsanitary
1 condition of the plumbing in or about the city, and if on such
Investigation, the plumbinp is found so, the Plumbing Inspector
1 shall serve written notice on the owner, agent or tenant of said
premises to proceed within ten (10) days following receipt of
notice to have plumbing corrected and placed in a sanitary condition.
Any person sq notified who fails to comply with the order of the
Plumbing Inspector, or neglects to file an appeal with Board of
Health within ten (10) days as specified, or fails to comply with
i the order of the Board of Health approving the action of the Plumb-
ing Inspector, shall be deemed guilty of a misdemeanor. No Plumping
now in use in any buildinp, if condemned by the Plumbing Inspector,
shall be taken put without the consent of the owner thereof, unleas
a majority of the Board of Health so direct. An appeal from the
! decision'of the Plumbing Inspector may be had to the Board of Health,
! and the decision of a majority thereof shall be final.
Section 1180. Rabilit for defective lumbin .--This ordin- j
ance shall not be cone rue o re eve rem or lesson the responsib-
ility or liability of any party owning, operating, controlling or
installinp any plumbing or gas piping for damage caused by any C
defect therein. Nor shall the City of Jefferson, or any of its
inspectors, including its Plumbing Inspector, be held as assuming
any such liability by reason of the inspection authorized heroin, !
or certificate of approval issued as herein provided.
Section 1181. Regal cle.--Ordinance number 15652 and
Ordinance number 601 a an a aus same are herby repealed.
Section 1182. PenaltT.--Any person convicted of any violation
j of any of the provis ons o -this ordinance shall be deemed guilty
4 -4-
of a misdemeanor, and upon conviction shall be punished by a fine
of not more than One Hubdred Dollars (0100.00).
Section 1183. Fffective date.--This ordinance shall be in
j force and take effe6tfrom and a er its passage and approval.
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