Since I'm still a novice with my pool and TF 100, I just want to share to see if I'm on the right track.
Just did a partial drain/refill 2 days ago (for high CYA) so I'm getting things back in order.
TA 90 (seems a bit low)
CYA 70 - 80
Temp 79 degrees
In doing the calculator, I will now add a gallon of bleach 10%. The rest seems ok (besides CYA), but it is much better.
Questions: my CYA is different today from yesterday due to lighting. Today I did full sunlight and got 80. Is full sun more accurate? Does it make a difference that the solution sat for about 5 min before going into test-tube because I was doing other tests?
I feel like a chemist. DH just shakes his head. Thanks!