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Old 06-01-2011, 04:17 PM   #1
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Hot water heater calcium

I have a 4 year old Suburban 6gal hot water heater that the previous owner neglected big time. Very little hot water is produced. After some difficuly I was able to remove the Anode Rod and discover that the tank was coated in calcium and mineral deposits. The rod itself was only 1" long. Please tell me that the tank can be saved. Great Forum. Great people.
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Old 06-01-2011, 05:11 PM   #2
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Originally Posted by Rocket Man View Post
I have a 4 year old Suburban 6gal hot water heater that the previous owner neglected big time. Very little hot water is produced. After some difficuly I was able to remove the Anode Rod and discover that the tank was coated in calcium and mineral deposits. The rod itself was only 1" long. Please tell me that the tank can be saved. Great Forum. Great people.
White Vinegar works magic in disolving calcium deposits. I just finished repairing my Atwood 10 Gal. Gas/Electric. One of the things I did, while the heater was removed from my MH, was to introduce just over a gallon of white vinegar into the tank. I let it set overnight and then removed the drain plug and flushed the contents into a 5 gallon pail. It's amazing the amount of junk that settled into the bottom of the pail. Atwood doesn't use a Sacrificial Anode Rod. The Tanks are double clad amuminum and the inner surface becomes sacrificial I also removed the electric element and soaked it in vinegar and it looked new when finished.
From what you have described, I wouldn't be afraid to fill the tank completely with vinegar and let it do it's thing. There's no harm in trying and you may be pleasently suprised at the results. Add a new anode rod and you should be golden
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Old 06-01-2011, 08:36 PM   #3
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The rod itself was only 1" long. Please tell me that the tank can be saved. Great Forum. Great people.
Replace the anode rod, clean the tank and use it. As long as it doesn't leak, it's serviceable. Considering the condition of the tank, it might be a good idea to replace the T/P relief valve while you're at it.

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