I just replaced both hot and cold American Standard 9C-23 stems and seats in my bathtub faucet with new ones made by Danco. Thought this would be a real quick fix. Everything seems to fit correctly, however the hot water stem will leak if it is closed while the cold water is on. The stem leak goes away if both hot and cold are on and if both are off. The spout does not drip if both are off.
Any advice on how to diagnose this problem? With both stems and seats brand new, it must be either a simple fix or a bad stem. I’m not even sure how it is possible that a closed stem could leak while the other is on and then go away once both are on.
Thanks much for any help!
Steve
Any advice on how to diagnose this problem? With both stems and seats brand new, it must be either a simple fix or a bad stem. I’m not even sure how it is possible that a closed stem could leak while the other is on and then go away once both are on.
Thanks much for any help!
Steve