The CYA test: I fill the sight tube, can still see the black dot......local pool shop tests CYA as 40
TA: TF-100 tests it as 160......My old test kit says 100, as well as the local shop.....
Whats up between the results...
TA: TF-100 tests it as 160......My old test kit says 100, as well as the local shop.....
Whats up between the results...