BSM drink again

Hi!

I have all ingredients for the drink, but I do not rely on the distilled water we have here (from a gas station). It is probably chemically distilled, and it says on the bottle that it should'nt be ingested. There is no distilled water anywhere here!

So as a substitute for the CH, I have a jar with limestone powder here, and was wondering if that should be mixed in the BSM drink, directly? Or taken before, or afterwards?

Thanks in advance!

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