Water Heater Knocks
Posted by Jim Bond on May 05, 2004 at 21:59:11:
I recently moved into my first home. The upstairs water heater, which supplies the downstairs shower, frequently "knocks" following a shower. When it does knock, the waterheater is on, ie, water is being heated inside the tank, flame going etc.

Any ideas? What of the thought that sediment at the bottom of the tank is somehow to blame? The water heater's fairly new, maybe 2-3 years. Thanks!

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