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Re: Rotten egg hot water.
Rotten egg odor is indicative of sulphate-reducing bacteria. Hard water or unused heaters are more prone to it.
First, flush the sediment from the tank. The sludge is a breeding ground for goobers.
Next, replace the anode rod with zinc or aluminum. The aluminum is less prone to supporting bacteria but zinc will react with sulphites and reduce the odor directly.
Third, add one pint of hydrogen peroxide per 40 gallons. This will oxygenate the water and get rid of anerobic bateria. Reconnect, fill and flush the tank.
It takes about 160-170*F to kill goobers, which is a severe scald hazard. When the water temp. is turned down, the goobers will return unless the above are done.
HTH,
Bob
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Keep the fire in the fireplace.
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