View Full Version : hanna calcium checker

joao junior
09/25/2011, 06:25 PM
i receive one of these and make a lot of test,one after other with diference results,anyone have a experince with it??thanks.

09/25/2011, 07:33 PM
There have been a few threads about the calcium and alk checkers over on the chemistry forum. The general consensus is that they either don't work very well or suffer horribly from some interference that we haven't identified just yet.