Forum Title: Upstairs bathtub faucet won't stop leaking, at wit's end
House was built in 1972, have 3 bathrooms, 1 downstairs, 2 upstairs. Recently renovated the house which included having 90% of the house re-plumbed. The problem: Upstairs guest bathroom, the bathtub faucet will not stop leaking periodically, and it's a good amount of water that it leaks too, enough to fill up a couple gallon bucket over the course of a week. We've had the cartridge replaced 3 times, as well as having a hole cut in the wall and the whole valve replaced. It still leaks. Mainly after using the other upstairs shower in the master bathroom. Additional Note: We had a utility sink installed in the garage 3 months before renovations started, that is when we noticed that the leaking started. At this point the plumber has pretty much given up and says he doesn't know why it's leaking. We are at our wit's end. Any ideas would be much appreciated.
Category: Plumber Post By: FRED WARD (Port St. Lucie, FL), 07/23/2016

The hole in the wall is still open. We only take showers, except my wife will take a bath once a week. The leak is random. For instance this morning I took a shower in the master bathroom, and 30 minutes later the faucet in the guest bathroom started leaking. I don't believe the valve to wall has any caulking around it. I will check the others when I get home from work. Not sure if this is related to the leak, but whenever we turn on a faucet (usually in the morning or evening) the water will come blasting out at a much higher pressure for 1-2 seconds and then level out to normal pressure. Could a bad expansion tank be causing that? I called my wife just now and had her tap on the expansion tank with a screwdriver and she said it sounded like it was full of water.

- CAROL JACKSON (Concord, NC), 09/02/2017

is the hole in the wall still open ? do you take mostly showers ? does it leak all the time or only when used ? i would start by checking the shower head piping . it will leak only when the faucet is turned on, that or the tub spout. after they are eliminated the next is the caulking around the valve to wall, spout to wall, shower head to wall next, is the wall to tub joint , check it for leaking answer some of these questions. then we can proceed describe the plumbing pipe arrangement of the utility sink.

- LAURA LEE (Muskegon, MI), 09/29/2017

ok,,,i was confused. you are talking about a leaky faucet, not a valve leaking i was headed the wrong way. this sentence is throwing me '''We've had the cartridge replaced 3 times, as well as having a hole cut in the wall and the whole valve replaced. It still leaks. Mainly after using the other upstairs shower in the master bathroom.'' if the whole valve was replaced, WHAT is leaking ? is the faucet dripping water out of the spout ? or is it leaking in the wall ? are these bathrooms back to back ?

- KRISTIN COHEN (Alhambra, CA), 10/12/2017

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