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- over 420,000 Posts - PlumbingForum.com -
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Author:
schaeracin (PA)
i have an outdoor wood burner it has a hot water coil in it and we have hard water.the coil is clogged any ideas how to clean it out.tried vinegar worked a little but still not much pressure.
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Author:
Shoemaker2 (MA)
They make a product called "Coil Boil" that is used for that purpose. I Also I have heard of guys using some kind of acid. I never used either, but have back flushed the coil before with adapters and a hose.
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Author:
nhmaster3015 (NH)
There are commercially available products that will do the job. Sizzle is one of them. It is a very strong acid that most supply houses will only sell to licensed plumbers. After you get it cleaned out you need to address the hardness problem.
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Author:
hj
If it is copper, then use muriatic acid.
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Author:
hj
Sizzle, Coil Boil, and similar products are just varying strengths of muriatic acid.
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Author:
nhmaster3015 (NH)
Oh yea, you need a ceramic pump to pump it through the coil also. Regular pumps won't last 5 minutes.
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Author:
hj
If it is a "flow through" heater without a storage tank, then it will not have a pump.
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Author:
Shoemaker2 (MA)
I think he was talking about a transfer pump.
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