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  1. #11
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: water hammer issues

    Quote Originally Posted by mom1967 View Post
    No well .We are on city water supply ( DFW area).
    Is there anyway we can reduce water pressure to home ? ( already have PRV& thermal expansion tank )
    Should we put water hammer Arrester in kitchen side as well like near dish washer /ice maker etc ?
    Yes , the pressure can be reduced at the PRV --- that's the function of the PRV -- to regulate whatever pressure you set for the house.
    "" an ounce of perception -- a pound of obscure "
    - Rush

  2. #12
    Join Date
    Sep 2011
    Location
    Michigan
    Posts
    7

    Default Re: water hammer issues

    When a older house was plumbed, air chambers were typically installed behind the walls. These are teed off of the feed lines to your fixtures and are meant to have air in them to cushion abrupt water shut off. The water "bounces" in the air chamber thus no sudden stop of water flow. Over time, the air in these chambers is absorbed into the water. If your house has these installed, shut off your main water supply valve and open your faucets, both hot and cold, allowing them to drain. What will happen is air will work its way back into these chamber. Close the faucets and open the supply valve. If you have these chambers, your problem should stop.

  3. #13
    Join Date
    Sep 2011
    Location
    Downtown, Baton Rouge, Louisiana
    Posts
    13

    Default Re: water hammer issues

    Sounds like the solenoid valve on the washing machine is causing the hammer...

    65 pounds is normal water pressure in the DFW area, has been since I lived there in the 1980's - 90's...

    If you have a PRV and an expansion tank, I don't know if installing arrestors will help - might need to go into the attic (if water lines are present) or into the wall between the kitchen and laundry and physically strap/secure the water lines.

    Water hammer, if left to IT's own devices, will eventually cause a leak somewhere - no ifs, ands or buts...

    Unsecured water lines are frequently the culprit here, due to poor training, installation methods and inspections.

    I hope this helps...

    Friendly Home Services Baton Rouge...

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