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I wouldnt see any problems with it i think the reason u dont see any one talking bout using it is cause of $$$ stainless is pretty expensive...
i would have to disagree with the 10% statement i have found that there is no noticable loss in potency and actually have seen the reverse it...
I do believe that pure blend was designed to be used with tap water that usually has enough cal n mag already in it so if using r-o water u need...