I have a Taylor K-2006 test kit with the CYA test that instructs to stop adding reagent when the black dot disappears. For me that seems to be a very inexact measurement and I can get varying test results from one test to the next. I'm not sure the time to stop is when the dot first seems to be gone or keep adding reagent until the dot's absolutely obliterated! Does anyone else find this test confusing or have any tips or ideas that might help? TIA
Hal