knocking hot water pipes
Posted by Kathleen on November 04, 2002 at 17:05:39:
Our hot water pipes knock as we turn off the faucets. We had a plumber out, and he installed an expansion tank and replaced the pressure regulator, but neither action helped the situation. I know we probably have pipes that need to be anchored better, but they are inaccessible (without cutting into walls somewhere). Is there anything else we can do to lessen the knocking?

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