How do you check the CYA level? is there a test kit available?
Also, With my 4 in 1 test kit I get the following #'s
Free Cl = .4
Total Cl = 2.0
pH = 7.4
TA = 70
I take the same sample to the local pool store and they do a BioGuard ALEX analysis with these results
Free Cl = 0
Total Cl = 1.2
pH = 7.5
TA = 134
Adjusted TA = 113 (Whats that mean?)
Why such a big difference in the Cl and TA results from my home test vs. the ALEX test???