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Water chemistry and indirect tanks
I'm looking at a particular SS indirect tank, that lists just two water requirements: pH 6.0-8.0, and chloride < 80 ppm. Doesn't mention water hardness. My city's water analysis lists pH 8.5 though, along with chloride 18 ppm and total hardness 99 ppm (4.6 gr/gal).
So overall, my city water is pretty good on hardness and chloride, but high in pH. I'm guessing that makes it prone to scaling, leading to the manufacturer's restriction?
I realize probably no one outside this site pays attention to these little things, but I believe in prevention of problems whenever possible. Is this the sort of thing to lead to early failure of the tank? And I assume it would void the warranty?