Backflow preventer installation costs also vary by the size of the valve. Measurements refer to the diameter of the valve; these typically range from 0.5 inches to 12 inches.

Installing a valve in a plastic drain is usually a quick, hassle-free job. But cast iron drains can be frustrating if the threads inside are corroded. If you can’t screw in the insert after ...

In the event of a backflow incident, typical remediation protocols involve flushing water systems—a process that can waste ...

If there are no valves on the backflow preventer, there is likely a release valve at the bottom of a large capped PVC pipe. This requires a special tool to reach down and turn the knob that ...

I have a shower drain in a basement apartment. Recently, the sewer backed up and sewage water entered the apartment through the shower drain. Is it possible to install some sort of a check valve in ...

The City Council is taking a look at toughening up enforcement for backflow preventer inspections. Under the proposal, customers would have to comply with current regulations on inspections, or be ...

If you're selling your home in Minneapolis or Bloomington, you'll probably have to pick up a few backflow preventers. Here's why. By hominspector December 1, 2011 at 12:26PM (The Minnesota Star ...

To see if you have a backflow preventer on your irrigation system, look for an in-ground rectangle box with a green cover — they’re by the water meter or perimeter of the house.