water hammer

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by kd, Feb 8, 2007.

  1. kd

    kd New Member

    Joined:
    Dec 11, 2006
    In copper plumbing is it a good idea to put in "water hammer" vertical air pocket extensions on hot and cold water outlet locations, or is this not done any more? If they are done how long should they be 12" or 6"?
     
  2. kd

    kd New Member

    Joined:
    Dec 11, 2006
    Also what about one large water hammer air pocket vertical pipe at the water service entry location?
     
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  4. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    Water hammer arrestors
    The have pistons in them, and they don't water log.
    Air chambers water log.

    They should go on the ice maker, washer and dishwasher.
    You can put them more places, but those three are the important ones.
     
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