Should I raise the TA so that the CSI is 0 to a positive number to protect plaster?
Pool Calculator says 70-90+ and it says a TA of 130 is required for CSI to be just on the positive side without borates and 0 with borates at 40 ppm.
Right now I am shocking the pool with the following readings:
FC = 24
CC = 0
pH = 7.5
CH = 260
CYA = 55
TA = 90
Temp = 72
Borate to be added to 40 as soon as shocking is over.