New washer, now have a violent water hammer

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by bbillcee, Jan 14, 2020.

  1. bbillcee

    bbillcee Member

    Joined:
    Feb 25, 2007
    Location:
    New York
    got a new washer and when it closes the valve after a rinse or fill i get a very violent bang in the cold water pipe...what can i do?
     
  2. JerryR

    JerryR Member

    Joined:
    Jul 27, 2011
    Location:
    Florida
    Last edited by a moderator: Jan 15, 2020
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  4. WorthFlorida

    WorthFlorida When the wife won't let you get a Harley!

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    In the meantime, close the water shut off valve some to slow down the water flow.
     
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  5. bbillcee

    bbillcee Member

    Joined:
    Feb 25, 2007
    Location:
    New York
    thanx guys!
     
  6. bbillcee

    bbillcee Member

    Joined:
    Feb 25, 2007
    Location:
    New York
    should i get one for the hot water as well?
     
  7. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    Yes. The cold will get more workout, but might as well while you are at it.
     
  8. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    Most codes expect that you will be installing hammer arrestors on the washer box.

    [​IMG]
     
  9. bbillcee

    bbillcee Member

    Joined:
    Feb 25, 2007
    Location:
    New York
    thx again guys!
     
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