Hello -- and thank you in advance for your help.
Here is the story -- Had some black algae. Dealt with that successfully. Then left town for 3 weeks. Friend added acid while we were away. Returned home to a beautiful looking pool, however tests show the following results....
I left the salt water generator at 50% while we were away, thinking the chlorine would come down.
What should I do now?
My first guess is to turn off chlorine generator until levels come way down. I know I need to increase CYA levels. Does having a pool screen reduce the amount of chlorine that gets burned off? Anything else I should be adjusting or thinking about?