Got a question. I've been monitoring the pool chem with test strip for now. For a while, it's consistent
FC : 5
TA : 80
PH : 7.8
but yesterday and the test strip shows FC: 0 , so my question is, can FC drop from 5ppm to 0ppm overnight?
The weekend was hot (101F), so I did bump up the chlorine generator from 40% to 50% production. But the last few days the temperature dropped to 86-90F.
Initially I thought there's no FC anymore, but the historical chart shows that it doesn't drop from 5 to 0 , so now I am not sure if there's really no FC or the test strip is wrong.
I have the oreq 4 in 1 test strip that the pool builder provided for me. I need to get a better kit soon. Tried to get the ColorQ pro 7 but it's backordered.
Another question, does high FC causes PH to go high too? On the oreq instruction, it has a note that says if PH is high (purple color) then too much sanitizer. Is that a true statement? Come to think of it, I am just guessing it's 7.8 cause the color is hard to determine.
Appreciate the help.