I've been looking over the instructions for my Jandy Aqua pure chlorine generator and the manual makes the following suggestions for ideal water conditions:
The suggest levels are far below the chem_geek chlorine/CYA chart. The chart says I should be between 4.4 and 7.8 for my current CYA level which is about 60.Free Chlorine 1.0 - 3.0 PPM. Above 3.0 PPM may cause corrosion of
Combined Chlorine (Chloramines) None (Super Chlorinate to remove all Chloramines).
pH 7.2 - 7.8 (Use Muriatic Acid to lower pH and Soda Ash
to raise pH).
Chlorine Stabilizer (Cyanuric Acid) 50 - 75 PPM
Total Alkalinity 80 - 120 PPM
Calcium Hardness 150 - 400 PPM
Metals (Copper, Iron, Manganese) None
Why does Jandy suggest it be so low?