Quote:
Originally Posted by lastlight
Yeah maybe I'm missing something here. The nitrate tests have you looking at a bunch of colours and taking a stab at it.
Ca and Alk have definite colour changes so why would we need those?
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The checkers might potentially give better precision as most quick and easy calcium tests measure to the nearest 50ppm and alk tests to a precision of 0.5. But I guess we won't know until they release more information.