In my education process to have total control over our pool, I've been reading up about CSI and how it changes with TA, CH, pH, and water temp.
My numbers are currently:
SWG @ 20% output
Water temp is around 83deg and climbing daily so my CSI is right at -0.1 and should end up right at 0.0 once we get into full summer weather so I'm not changing anything right now.
I know the CSI is important with gunite pools and such but does it really matter with a vinyl lined pool?
Still learning and absorbing all the great info on this site!