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    nbkjna4's Avatar
    nbkjna4 Posts: 1, Reputation: 1
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    #1

    May 28, 2012, 03:38 PM
    Flush toilet pipes make loud noise
    Lately after I flush the upstairs toilet only, there is a delay of about 10-20 seconds and then it sounds like a pipe or something makes this loud jack hammer until the toilet shuts off and the tank fills up. Why is this happening?
    afaroo's Avatar
    afaroo Posts: 4,006, Reputation: 251
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    #2

    May 29, 2012, 03:51 AM
    This loud noise is caused by a loose washer in angle valve or the fill valve, the next time the noise starts start to back off the angle stop located under the tank counterclockwise see if noise stops, next take the tank lid off and tell us which fill valve do you have, and will tell you the next step, Thanks.

    John
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    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    May 29, 2012, 06:41 AM
    We call this "seat chatter" and John's correct. This could come from the angle stop or the ballcock on the right. Good luck, Tom
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