A backwater valve is a backflow prevention device used to prevent outbound water through a dwelling's drain pipes from re-entering "back flowing" into a home. The valve contains a flap that allows water to exit the home, but closes to prevent the back flow into the home.Nov 7, 2020
What is the purpose of a backwater valve?
The backwater valve is designed to automatically shut to prevent leakage out of the plumbing fixture if sewage from an obstructed public sewer backs up the owner's drain line.
Where is the backwater valve located?
basement
How is a backwater valve installed?
How do you install a backwater valve? A backwater valve should be installed by a licensed plumber who will dig into your basement floor and remove a short piece of the sewer lateral (the pipe that transports waste water from your home and into the sewer), and replace it with a backwater valve.Oct 12, 2017
How do you install a PVC backwater valve?
https://www.youtube.com/watch?v=cGGoRb4kBX4
Where should a backwater valve be installed?
Plumbing codes require backwater valves when a fixture is installed on a floor that is below the next upstream manhole. The obvious example is the basement floor drain. Less obvious is a first floor fixture in a lot at the bottom of a hill.Jan 1, 2012
Can you install a backwater valve outside?
Backwater valves can be installed on the outside of a building. In these cases a high slope on the sanitary sewer lateral must be present in order to obtain proper installation.
Are backwater valves illegal?
It is illegal to do so, and debris and silt will clog your line. Consult a plumber to correct any pre-existing illegal connections. Install a backwater prevention valve, which is a fixture installed into a sewer line (and sometimes into a drain line) in the basement of your home or business to prevent sewer backflows.
Are backwater valves code?
A backwater valve is required by IPC and UPC plumbing codes, as well as many state and local plumbing codes, when the cover of the nearest upstream manhole is above the flood rim of the lowest fixture in the building.