Water Hammer with no flow
Posted by Paul Ward on May 27, 2001 at 17:23:54:

We have a 9 month old house and have only recently been getting a water hammer (about 10 in 5 seconds) about 4 times a day. This happens when no water is flowing. The system has a "Potable Water Expansion Tank" above the water heater, and a battery operated sprinkler controller under pressure. Where should I look?


Paul Ward
San Jose, CA

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