Quote:
Originally Posted by DiverDude
Oh !? Do tell.
What's the 'solution' you got ? -NIST certified H2O ?
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Kevin sells a solution, that gives you the calibration points for many things... Salinity, MG, Calcium and so forth... Salinity, I believe it will give a true reading of 35, so I put a few drops on the refractometer and reset it to a true 35 reading... Good stuff!!!