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#4
11-21-2011, 08:43 PM
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I have the Hanna calcium and alkalinity. I really have nothing to check accuracy against but what ever you do be very accurate with the water and solutions you need to add in testing and they should read out accurate. I got alot more than 15 tests in the calcium so not sure what to say there. For the ease of use and not trying to decide what "shade" of color is showing on other kits I'm glad I bought the Hanna testers.
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