Pool size 12.000 gallons
The K-2006 kit comes with a water balance calculator. Entering the above, I get a CSI of 0.35. I would normally add about 20 oz MA to drop pH to about 7.4 and the CSI to -0.05.
Entering all the above into Pool Math, I get a CSI of -0.07...so I'd do nothing (except bump up the Cl). Why the difference???