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softened water in boilers
How many issues have others had with softened water in boilers? There is a lot of heresay about this subject, and many differing opinions. And what, really, is the difference. We sometimes check boiler water with a cheap kit that shows PH, relative hardness, chlorine concentration, and such; but I don't trust it, because it always reads close to the same. From what I know, the preferred method of piping softened water is to feed the Water Heater only, leaving raw water for everything else. But some softeners are installed on the whole dwelling (including irrigation!) and we usually recommend seperating all but the hot water side. Our area has all types of water from treated city water to very, very hard well water to very nice well water. We have had problems with scaling in some small-passage type boilers, rusting of steel parts in cast iron boiler systems, and severe rusting in systems with non-barrier tubing and cast iron. And aluminum heat exchangers corroding thru due to incorrect glycol usage. Surely somewhere out there is a body of knowledge for reference that covers the various scenarios!?
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