from pool school
Chlorine / CYA Chart
Perhaps a cornerstone element of BBB is understanding the relationship between the chlorine in your pool and the stabilizer you put in to protect the chlorine from the sun. Generally, the more stabilizer, the more chlorine you need to maintain its effectiveness.
1. if chlorine "conditioner/stablizer" drops evaporation of chlorine, why is more needed at higher cya levels?
2. Raised cya from 30 to 50. I was trying for 40 but put in too much conditioner. I expected to see less need
for FC additions of chlorine bleach, but that hasn't changed. Why not?
3. What does conditioner salt do? Obviously it changes the chlorine bleach into something. Doesn't this chemical change use up the conditioner over time, or is it a true catalyst