Using the Pool Calc, I've typed in the following target values. The targets all seem reasonable to me, and most of them are based on direct feedback I've gotten here. Why does the Pool Calc show a scary CSI level of -0.6? This makes me nervous. I have a gunite/plaster pool and don't want to be near the corrosive side. I know that the TA level is low compared to more typical levels, but this is in the normal range for SWG's and has been recommended to me by TFP posters.
FC = 6
pH = 7.5
TA = 70
CH = 250
CYA = 80
Salt = 3200
Temp = 74 (my current temp)
FC = 6
pH = 7.5
TA = 70
CH = 250
CYA = 80
Salt = 3200
Temp = 74 (my current temp)