Knocking water pipes

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  #1  
Old 03-16-02, 08:11 AM
glyras
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Question Knocking water pipes

We recently installed a new Whirlpool clothes washer, and also replaced the shut-off valve in the wall because the cold side would not shut off.
When doing the wash we get pipe banging. It is loud (vibrating) and annoying, and I want to figure out how to fix it, or have a plumber called.
We have always had a knocking when the dishwasher started up, but it is not as pronounced.
I saw an article about special devices with inert gas that can be installed in the feeding lines but did not give much more info.
Any recommended solutions?
 
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Old 03-16-02, 10:12 AM
Mike Swearingen's Avatar
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Cool

Washing machine and dishwasher valves shut off abruptly, which will cause loose pipes in the wall to bang.
You can either clamp the pipes better, and/or install air hammer arresters, if you want, to help alleviate it.
Good luck!
Mike
 
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Old 03-16-02, 12:00 PM
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Also check your water pressure high pressure is hard on plumbing. A pressure reducing valve my solve the issue

Good Luck
 
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