High -pitched Squeak

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  #1  
Old 06-14-19, 07:19 AM
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High -pitched Squeak

I have an under-slab CPVC water line system. A single run with several branches. In my master bath, I get a high pitched squeak when I operate a water valve at any other location. It's not particularly loud, but it happens every time another water valve is operated. Any ideas ??
 
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Old 06-14-19, 08:54 AM
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Is the squeak coming from a faucet? If so it might be a balancing spool in the faucet moving in response to the changing water pressure. If it's not a faucet making the noise maybe the pipes are moving slightly and rubbing against something.
 
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Old 06-14-19, 08:55 AM
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Could be a washer going bad and a slight leak of water or air slips by. Maybe a bad cartridge. Are all your isolation valve fully open, including your main water valve?
 
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