| Posted by Bryan Silver on June 15, 19100 at 16:51:34: | |
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I just moved into a new home, and the hot water heater periodically "knocks" while the water is running. It is very loud and I can hear it in other rooms. This is an older gas heater from Sears (40 gal I think) and that's all I know. Is it about to die on me or is it something like air in the tank? Thanks! Bryan |
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