low pitch humming in pipes
Posted by Rick on July 14, 2003 at 22:45:13:
Every 15-20 minutes with no water usage we hear a very low pitched humming that lasts about 5 seconds. I have tried and tried and cannot locate where the exact sound is coming from other than to say from the area of our master bathroom. I have constantly checked to make sure all the faucets were off and not leaking all around the house and everything seems normal. I have also not noticed any water loss in the toilet boils either, any advice?

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