I have a leak on the cold water side in a bathtub. When the water is turned off, nothing leaks. When the cold water is running, nothing leaks. As soon as I turn the cold water off, its leaks. Not for long but I pulled part of the baseboard off and can feel water on the floor inside the wall. I was told it could be bad solder on the pipes, but if that were the case wouldn't water be leaking all the time. Please help, I don't want to pull the counter out and tear down the wall. Thanks!
Shane

Hey Shane,
We need more details. What brand bath faucet do you have? One handle or two knobs? About how old? Back to you, Tom

Sorry about that. It's two knobs, I think it's price pfister and it's probably close to 20 yrs. Old.

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Originally Posted by shsvoboda

Sorry about that. It's two knobs, I think it's price pfister and it's probably close to 20 yrs. old.

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Here's a cutaway of a older tub/shower valve. Yours should be the same with the exception of the center diverter. Remove the cold watewr knob and chrome face plate and see if you can spot the leak. Let me know, Tom

I pulled the chrome off. Didn't see water leaking, but everything was wet. The pic is what I've got because at first I thought it had something to do with the diverter. It's driving me crazy. It seems that the water caught between the faucet and the cold water valve is what I see on the floor. Could replacing the cold water valve solve the problem? Or will I have to replace the whole thing. I hope not because I'll have to remove the vanity and the lines going from the wall to the sinks are soldered. Thanks for the pic that was a big help. I was about to look to see if I could find that cut out!

Hello Shane,

Attach is another picture of your valve Similar to Tom's picture, what you need to do is to shut off the water to the shower, remove all 3 stems take them to a home supply store buy all the O rings seals and washers replace them one by one, before installing the stems turn on the water for a few seconds to flush out any debris remaining in the valve, install the stems and have fun, you don't need to change the valve assembly, Thanks.

John

So I don't need to pull the entire valve out, just the stem. Thanks, I'll try that as soon as I get home from work.