Recent content by perrotoro

I had seen the FC as a funtion of CYA chart on the pool School and guessed that was was it. If I upgrade to the premium, suggested additons willl be provided?

Just entered my pool data for the 1st time: 22600+/- gallons, Plaster, 2.5 FC, 8.0 pH, 60 TA, 400 Hardness, 125 CYA. Guessing 75degF and using test strips. I think it calculated a -.2 CSI and offered congratulations, I can't get software to recalculate, so I'll delete and renter to confirm...