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Karen`s System - nutrient deficiencies

>Step 16) using the water utility analysis, calculate how much calcium,
>magnesium and potassium you need to add to achieve 60 ppm calcium, 5 ppm
>magnesium and 10 ppm potassium.

How much eg.Potassium would you add to say 10 gallons of RO or fully
de-ionised water to obtain a reading of 10ppm. Unfortunately, I am not a
chemist and I dropped out of chemistry classes - boy do I wish I hadn`t !!

Andy M Moore - England
andy at ascot_u-net.com