I just transitioned to Hannah checkers for my water tests. I was running Red Sea tests. All parameters line up except for the dkh. What tests out with Red Sea at a 9.1 might only be a 7.5 with the Hannah. Am I doing something wrong? Any suggestions?
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A month? That seems a little excessive. I just opened a brand new one and it's says it's good for 15 months. I can't see Hanna being off by a factor of 15.The Hanna reagent for Alk is only good for like a month I think after opening. Once opened it doesn't last long. Like said above, all test kits are about repeatability and building trends.
I mixed up only 31 tests with months. Once opened it does become bad faster than 15 months though.A month? That seems a little excessive. I just opened a brand new one and it's says it's good for 15 months. I can't see Hanna being off by a factor of 15.
wish I'd known that.The Hanna reagent for Alk is only good for like a month I think after opening. Once opened it doesn't last long. Like said above, all test kits are about repeatability and building trends.