Hanna Colorimetric Checkers for Alk and Ca? F! yes!!

[Ron99]

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?

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.