Just got the TF100 and did some tests, and all looks ok (I think I am going to re run them to make sure I am doing it right. I do know my PH was 8.0 (ish) Free was 2.0, , TA was at 100, CH about 500. So what about phosphates, Cyanuric Acid, TDS, do they ever need to be tested?
I also didn't...