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    newyorkmets's Avatar
    newyorkmets Posts: 1, Reputation: 1
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    #1

    Mar 26, 2008, 07:19 PM
    Banging noise when flushing
    Why is my toilet making a banging noise after flushing?
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
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    #2

    Mar 26, 2008, 07:43 PM
    When the float pops up and shuts off the water there is a significent increase of water pressure in the pipe. This causes the pipe to vibrate and hit something. This is generally called water hammer. Installation of bumpers or shock absorbers will probably eliminate the noise. Can be installed anywhere along the pipe.
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