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Old 01-12-2015, 06:33 PM   #7 (permalink)
Newt
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Default Re: Test kits: the good, bad and ugly

Very interesting Ray and most likely correct.

I have tried doing something similar using the Fertilator and my digital scale. I mix a known amount of KNO3 into a gallon of distilled water and do a test. I use that to compare.
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