Second year with the intellichlor 40.
Cranked it up to 100%, run the pool from 9-5, added a bottle of bleach for good measure.
Salt = 3200ppm
So I added 3 cups of CYA to get the CYA to nearer 70.
I am wondering if when the chlorine is low, the intellichlor, has trouble making headway. Last summer I was able to maintain good chlorine levels at lower run times for most of the summer.
Currently, I've cranked the intellichlor to boost mode - 100% and set the pump speed up and to run for 24 hours. I'll test again tomorrow.