Re: Finding the Backwater Valve?
Regardless of the name, it's a check valve that has a swinging gate or a spring-loaded plunger that only admits water flow in one direction. It swings shut if water should try to go the wrong way.
If the valve is inside your house, it will be between the last branch of the sewer line and where the line exits the foundation. It may be cylindrical; it may also look like a wye fitting with the wye branch plugged and pointing upward. If it's in the yard, it's probably buried, and could be several feet deep.
Last edited by Fencepost; 05-01-2013 at 02:34 AM.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.