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Thread: Tapping in wall

  1. #1

    Question Tapping in wall

    Hi,
    Need some input.
    2 story home built in 2005 while running tub on 2nd floor a tapping can be heard in wall on 1st floor where drain line goes down to slab. No water leaks and only happens with tub running and draining. noise stops after water is shut off and drain is empty.

    Thanks
    Mike Richards

    Similar Threads:
    Last edited by Mike Richards; 04-11-2012 at 09:46 PM.
    Certified Master Inspector CMI

  2. #2
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    23,987

    Default Re: Tapping in wall

    Expansion and/or contraction of the supply and/or drain piping, which is rubbing against the supports and/or framing as it expands and/or contracts.

    Does it do it more with hot water or cold water, or did you only run both?

    Usually, it happens more with hot water as the hot water expands the hot supply piping and the drain piping more than cold water does.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  3. #3

    Default Re: Tapping in wall

    Thanks Jerry,

    ran both hot and cold together.


  4. #4
    Join Date
    Mar 2007
    Location
    Columbus GA
    Posts
    3,719

    Default Re: Tapping in wall

    Since you said there it is leak, I believe there is more to it than what Jerry describes.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

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