My pool water is crystal clear.
typical readings are
FC - 10
PH - 7.6
TA - 100
CH - 350
While reading the ABC's of water chemistry in pool school i came accross the abbreviaton "CSI". I don't know what it stands for but apparantly is important because it refers to the tendency of a plaster pool to deteriorate.
I have had problems with loss of surface coat in my pool due to calcium deficiency in the past so am very sensitive to anything that may effect further damage.
This line in pool school jumped out at me "Pools with plaster surfaces should factor their CSI into the preferred TA level decision"
How does one determine their CSI and then how are the results factored into the 'preferred TA level'