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    hyp1102's Avatar
    hyp1102 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 13, 2008, 02:14 PM
    Humming noise from water pipe system
    Hi,

    Humming noise from water pipe whenever turned it on at any water faucets, toilts and outside faucets.
    Noise disappear right away when water turned it off.

    Please advise me the possible causes and ways to fix.

    Your quick reply will be much appreciated.

    Thanks. Mr. Park
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Aug 13, 2008, 03:24 PM
    Hello Mr.Park,
    Would this be hot, cold, or both? Do you have a PRV (pressure reducing valve) installed near where the water enters your house? How about a sprinkler system? Cheers, Tom,
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
    Plumbing Expert
    		  
    #3

    Aug 13, 2008, 10:12 PM
    It can also be friction that you hear... coming from undersized pipes... or kinked pipe in your system... the kinked pipe could be your flex line between angle stop valve and your faucet.
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