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My CPVC pipes are making a loud knocking noise

When I turn my hot water on in my daughter bathroom I hear a loud knocking in the attic. If I turn the cold side on in that same bathroom sink it stops completely. This is only happening in that bathroom and only in the sink. My house was replumbed 5 years ago with CPVC and has been doing it since the re-plumb,


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  • # Posted 1 year ago
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EricDaPlumber
14 answers
15 thumbs up

If I am up early, I am going to get more than just your worms.

Check and make sure the pipes in the attic are properly secured. Otherwise, you will need to install a water hammer arrestor.
Posted 1 year ago ( permalink )
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