A big pipe carries waste from your house to the main sewer line under the street. If either becomes plugged or overloaded, sewage backs up and flows out of the lowest available drain. That’s usually a ...

Sewer backflow preventers are an essential part of your home's plumbing. Here's why you need one and how to test if yours is working properly.

The city has paid a lot of attention to backflow preventers, since our tap water ban in 2016. Those devices are designed to keep chemicals and harmful bacteria out of our water supply. Now, the ...