advice from a friend who's a plumber
Posted by terri on June 26, 19100 at 11:12:49:
In response to advice from a friend who's a plumber
I would agree that your hot water heater has mineral deposits in the bottom. A friend of ours who is a plumber told us that ours knocked because of mineral deposits but that was sign also that the water heater was probably not going to last much longer and is not as efficient. If you can stand it, I would keep it for now. Ours worked for over 2 years while knocking from day 1. No sign of it giving up when we moved.

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