I did an AA treatment little over a week ago. I had to add gallons of bleach to achieve 3 ppm. Seemed like it held for awhile.
I have a SWG running about 8-9 hours a day with a salt reading of 3800. Today I tested the water and came up with.....FC-1
Also my CYA is at 70.
What should I do? Shock? Run the SWG longer (it's running at 60%) bump up the %?
Not sure what I should do....