Water Hammer

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    • #281624
      Lawrence M. Wasserman

      My water hammer problem is interesting in that not only does it happen when a valve (any valve in the house) is closed but also when a valve is opened! Happens like this; open a valve, the pipes hammer and pressure/volume is reduced a bit. Then the hammering stops and pressure/volume is restored. Turn the valve off – even slowly, and the pipes hammer.If I close the water heater inlet valve the pipes do NOT hammer. This, of course leads me to believe there is a problem with the water heater but I simply cant figure out what it might be. I need to add that the heater is at least 7 years old but the problem only recently started.Thanks in advance for any advise!Dan

    • #307299
      Dan Holderness

      : : My water hammer problem is interesting in that not only does it happen when a valve (any valve in the house) is closed but also when a valve is opened! Happens like this; open a valve, the pipes hammer and pressure/volume is reduced a bit. Then the hammering stops and pressure/volume is restored. Turn the valve off – even slowly, and the pipes hammer.: If I close the water heater inlet valve the pipes do NOT hammer. This, of course leads me to believe there is a problem with the water heater but I simply cant figure out what it might be. I need to add that the heater is at least 7 years old but the problem only recently started.: Thanks in advance for any advise!: Dan Check the h/w temperature AND flush out the bottom from sediment Good luck

    • #307311
      Dan Holderness

      Most storage type of hot water systems have a none return valve on it. Sounds like either the stop cock or the none return valve are faulty. The innards are bouncing backwards and forwards, creating the hammer

    • #307321
      Dan Holderness

      you might try changing the tap washer in the valve with which you turn off the cold water supply to the H.W.S.

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