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Old 12-02-2020, 9:23am   #1
04 commemorative
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Default A.O.Smith Water heater issue

After Super Storm Sandy came through and under our home doing over $250,000.00 worth of damage I was forced to move the water heater and hot air furnace up into the attic (Insurance) so anyway it is 7 years old and has been making crackling and thumping sounds from inside the tank when you are using hot water and either turn on the cold water or flush the toilet (makes no sense to me) Wife looked it up on google and said we probably needed to flush the tank and then a local and very good Plumber confirmed it so....I shut heater off let it cool down awhile,opened two hot water faucets to get air flow into tank and drained it totally into the bathtub....then ran the cold water feed into it a few times and drained it again.
While doing all this I was surprised how little debris came out....I guess being on the barrier island the water is very soft. Anyway I refilled tank,turned on the burner and reheated the water.
Still making the sounds...plumber says he does not believe it is a dangerous thing and we did everything correct. His advice was either live with noise or he can install a new water heater,then it will all be on him.
So what do the fine folks here that know plumbing think ?
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