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Thread: Plumbing noise

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  1. #1
    Join Date
    Oct 2008
    Posts
    2

    Default Plumbing noise

    When we flush either one of our two toilets there is a rattling noise in the plumbing pipes. We have had new fill valves put in the toilets and drained the plumbing system down twice this made it worse.the house is 12 years old concrete block and has a pressure regulator and a back flow at the water supply. We don't know what to do.
    Alleng

  2. #2
    Join Date
    Apr 2008
    Location
    Houston, TX
    Posts
    62

    Default Re: Plumbing noise

    Sounds like you are getting water hammer. The fact that it was worse when you replaced the toilet fill valves, and the fact that you have a backflow preventer on your system really leads right to it. When the water shuts off abruptly, it causes the pipes to jerk or vibrate. Some simple solutions - secure all exposed pipes with hangars and foam insulation...what you are hearing are the pipes banging against things, and you need to try to keep them from moving wherever possible. Also, install some water hammer arrestors. These come pre-made at the home center, and a good place for them is in-line with the washing machine hoses. You can also get these arresters to go in-line with the toilet supply lines as well, but they are a little harder to find.

  3. #3
    Join Date
    Oct 2008
    Posts
    2

    Default Re: Plumbing noise

    The noise in our pipes starts as soon as you flush the toilets not when the fill valves shut off. And the noise does not happen when the water is running some where else in the house. Do you think the pressure regulator could be making the noise we have been told we have a lot of water pressure.
    Alleng

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