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[–] 30 points 1 year ago (5 children)

mineral content can be measured by evaporating a sample and weighing what is left as milligrams per litre of total dissolved solids (TDS)

I'd recommend ion chromatography here if you want accurate results lol

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  • [–] 14 points 1 year ago (2 children)

    Dude, the whole thing is a scam. We don't want to get bogged down with expensive fancy equipment.

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