Dirty water can include contaminated or polluted water like gray ... a sewer backflow preventer to keep your potable water safe. Learn more about what a backflow preventer does and how you can ...

A big pipe carries waste from your house to the main sewer line under the street. If either becomes plugged or overloaded, ...

Close the valves and release any water by using a screwdriver to turn the test ports to release any water that is in the backflow preventer. For a visual, here’s a report from KHOU 11’s ...