Glen H
Member
I had a slow leak coming from under the cultured marble base of a shower. It would not leak with a short shower but would after a long one - about 20 minutes. Water would weep into the bedroom from under a floor stud (one on bottom of the wall that is nailed to the concrete). I positively confirmed with a drain plug that it was not from poor seal (silicone on the joints of the shower). Marble guy and I filled the bottom of the shower up to the curb( about 4” of water) and left it overnight, no leak. To make a long story short, I tore out all the marble. The supply pipes were dry but there was water under the pan. I hired a plumber to come look at it. The first thing he told me was “your water is not coming from your supply pipes”. Our city has between 65 and 90 psi of pressure. He said if they were the source they would be leaking now.
It seems stupid for me to ask but I’ll ask it anyway. Is he right? Is there any way a pipe under pressure would only leak occasionally?
To be brief, the shower valves do not leak and I have through much testing almost positively eliminated the drain as the source. If it’s not the supply pipes it has to be the drain. But I’m in doubt and can’t put up new marble without knowing if the drain is the only source.
Appreciate some help here thanks
I should add that the Sheetrock behind the pipes was black and wet.
It seems stupid for me to ask but I’ll ask it anyway. Is he right? Is there any way a pipe under pressure would only leak occasionally?
To be brief, the shower valves do not leak and I have through much testing almost positively eliminated the drain as the source. If it’s not the supply pipes it has to be the drain. But I’m in doubt and can’t put up new marble without knowing if the drain is the only source.
Appreciate some help here thanks
I should add that the Sheetrock behind the pipes was black and wet.