Gibsonguy 0 Posted November 3, 2016 Report Share Posted November 3, 2016 Hi All, I just wondered if anyone can confirm or deny my theory. I've never seen any like this, but can this be an old anti-black-flow preventer? The valve turns completely left and right, but it is sealed at the floor. Because the home is 1950 construction and it's in the slab, I am just making an educated guess.. Anyone? Click to Enlarge 37.89 KB Quote Link to post Share on other sites
Mike Lamb 56 Posted November 3, 2016 Report Share Posted November 3, 2016 Looks like a typical back-flow valve like you surmised. Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.