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pc_cipp_flyer_2015_01Thank you for your patience as we improve the sewer system in your area! HOW IT WORKS Cured-In-Place-Pipe (CIPP) is the most commonly used method for sewer rehabilitation. Like much of the work MSD does, CIPP installation takes place underground. 1. A flexible lining filled with heat-activated resin is inserted into a cleaned pipe using an inversion process. 2. Heat is applied through steam or water. 3. The resin hardens as it cools, forming a pipe-inside-a-pipe. 4. Service laterals are restored using robotic cutting equipment to re-establish a connection with the new pipe. Compared to traditional “dig and replace” methods, CIPP is typically more cost effective, less disruptive and safer for customers and workers. IMPORTANT! Please discontinue use of all water during the installation period as indicated on your door hanger. Minimal restroom usage with limited flushing is acceptable. Over time, sewer pipes deteriorate due to age and use. Through MSD Project Clear, the Metropolitan St. Louis Sewer District will repair thousands of miles of pipe over the next two decades to reduce basement backups and sewer overflows. Sewer Rehabilitation: A Guide for Residents ABOUT MSD PROJECT CLEAR Project Clear is the Metropolitan St. Louis Sewer District’s initiative to improve water quality and alleviate many wastewater concerns in the St. Louis region. Project Clear will invest billions of dollars over a generation in planning, designing, and building community rainscaping and system improvements. The St. Louis region’s success with Project Clear will only be possible through strong partnerships and clear communications with the public. For more information on Project Clear, visit ProjectClearSTL.org or follow us on Twitter @ProjectClearSTL or Facebook at Project Clear STL. Sewer pipe BEFORE CIPP method Sewer pipe AFTER CIPP method Preparation for installing the resin-filled liner WHAT RESIDENTS NEED TO KNOW Field crews will wear yellow safety vests and work near manholes. Manholes can be located in streets, backyards or alleys. Work is typically completed within just a few hours. You will hear the sound of a large motor running to power our equipment. You may notice an odor from the resin used in the CIPP process. It is nontoxic and will go away as the lining solidifies. HOW YOU CAN HELP The process of curing the pipe may involve steam, which can look like smoke. Don’t worry! Contact field staff if you have questions. The smell of resin used in the CIPP process has a slight odor which can be carried from the sewer system to your home. To avoid this, pour water in sinks and floor drains the morning work is scheduled if your sewer traps are dry. For your safety, please do not approach field staff while they handle equipment. Cured In Place Pipe (CIPP): A jointless, seamless, pipe- within- a- pipe with the capability to rehabilitate sewer lines ranging from 4 to 110 inches in diameter Truck is positioned to access sewer pipes through backyard manholes. Thank you for your patience as we improve the sewer system in your area! QUESTIONS MSD has partnered with highly qualified contractors to complete this work. If you have any concerns, please contact them using the information provided on your door hanger. You may also contact MSD Customer Service at (314) 768-6260. Applying steam to the liner to harden the resin and form a new pipe-inside-a-pipe