I tested my pool water today using the TF 100 test kit (which is great). I have an inground 18x36 vinyl lined pool. My readings are:
CYA 100 (High)
My problem is the chlorine test. The cheap drop test shows an Orange color. Off the chart! But my TF100 kit which usually tests very well went like this: I added the R870 powder to my water sample and instead of turning red as usual it just stayed clear. Is this 0 FC?? Then I added a few drops of R003 and the sample turns yellow! Even if I retest and add a few drops of R871 in between, the result is the same. What gives?? I know my chlorine level is high due to the cheapo test and when testing my T/A the sample water goes from blue to yellow instead of green to red. I realize my CYA is high so I've been keeping my FC level high using liquid bleach. My pool water is crystal clear with a very slight trace of algea on the bottom. No chlorine smell or irritation. It hasn't rained here in New York for two months. What's my next step??? Any help is appreciated!