tapping noise

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tapping noise

Author: PH1 (MD)

In the master bathroom whenever the hot water is turned on at the sinks I hear a tapping sound. It sounds like your fingernail tapping a wood table. The noise will sometimes continue after the water is turned off but it does stop. When first heard the noise I thought the worse, a water leak no signs of leaking for 13 years. The pipes are cpvc and my guess is the pipe is bouncing against a stud. Would you all agree?

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Re: tapping noise
Author: packy (MA) not bouncing but rubbing against wood because of thermal expansion. only cure is to "swiss cheese" the walls/ceilings in an attempt to locate the problem. once found then insulation is placed between the pipe and the wood.
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Re: tapping noise
Author: PH1 (MD) Thanks, will put my ear to the wall someday. Edited 1 times.
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Re: tapping noise
Author: bruceb3 (MI) It's just annoying, not dangerous. Edited 1 times.
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