Sewer Valves
Many people in Oak Park, a suburb of Chicago, are installing sewer valves for their homes. Some years back we had an impressive deluge and this is a reaction. Your stack or stand pipe may drain directly out to the street sewer. Putting a check valve or flapper in the way means that when the system hits load those houses refuse service and the overall pressure on the system will increase precisely at the time it is stressed. If you don’t have a flap then super tough on you, the effluent has to go somewhere. A product that creates its market. Once everyone has flaps there should be popped flaps or broken pipes. Flaps are necessary on flood plains. As flood plain construction is common it is difficult for other municipalities, such as Oak Park, to deny their use. Chicago used to require a basement floor drain. You were expected to share your suffering with your neighbors. Most people have their stack drain into their own sewer that then drains into the street sewer. This is a nice fea...