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Pipe Knock

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  • Pipe Knock

    Just finished a bathroom remodel in my house. Replaced the 35 year old Crane 2 handle shower/tub faucet with an American Standard single handle. Everything went together fine and the room looks good. Now, I am getting pipe knock about 20 feet away from this bathroom in the laundry room. The American Standard was soldered onto the existing water lines and none of the pipe straps were changed or loosened. Any idea why I would get banging so far from the bathroom after doing this change out? Would an expansion tank in the laundry room area solve the problem?

  • #2
    Re: Pipe Knock

    It would any thing to absorb the shock of the new valve will help.

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    • #3
      Re: Pipe Knock

      The weird thing is, when you turn the shower on or off, there is no knock. It only happens when the washer is taking water.

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