My CYA and CH have dropped over the past month.
CYA 50 -> 30
CH 275 -> 200
Any ideas why? 20k gallon pool. We have had a bit of rain here in Atlanta and I have an overflow drain at water line. I rarely need to add water from hose. Doesn’t feel like any more than the 1/4” loss to evaporation and bucket test doesn’t indicate a leak.
I will say, both of my bottles of R-0011L seem a little different than my other reagents: one bottle needs wiped between drops and the other produces drops that look a little smaller than other reagents, so perhaps I’m not getting repeatable CH tests? And I’ve always struggled with the subjectivity of the CYA test. Or could that much loss just happen from rain water overflow? I really don’t think 1/3 of my pool water was replaced this month
CYA 50 -> 30
CH 275 -> 200
Any ideas why? 20k gallon pool. We have had a bit of rain here in Atlanta and I have an overflow drain at water line. I rarely need to add water from hose. Doesn’t feel like any more than the 1/4” loss to evaporation and bucket test doesn’t indicate a leak.
I will say, both of my bottles of R-0011L seem a little different than my other reagents: one bottle needs wiped between drops and the other produces drops that look a little smaller than other reagents, so perhaps I’m not getting repeatable CH tests? And I’ve always struggled with the subjectivity of the CYA test. Or could that much loss just happen from rain water overflow? I really don’t think 1/3 of my pool water was replaced this month