noise when wellpump shuts off

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    • #272643
      MasterPlumbers
      Keymaster

      Our pump and pressure tank are four years old. Just recently, there is a loud double “thunk” and the pipe jumps whenever the pump turns off. There is no loss of water pressure or any other symptoms. What could be doing this?

    • #286063

      The noise is caused by your check valve, it seems that the lower your water level the harder the valve closes.

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