I just bought 2 new bottles of reagent from BRS. So 2 days ago I opened a new bottle and Alk was now testing at 11 dKH. Panic set in at first and then it just seemed something was off. Now way alk raised that fast. I drew another sample of reagent to test again and noticed small clumps in the fluid. Opened the second bottle and alk was reading at 7. I really think you need a backup tester and can't take these test results as exact sometimes.
