Quote Originally Posted by Water_man View Post
Please report to what level of FC you shocked. I fought my green pool with FC= 20 (CYA=60) and won it like you did , but another member of this forum is having a problem fighting it.
I have to admit I was not being scientific. I shocked, I still saw green, I shocked some more, kept vacuuming and backwashing. I'd estimate that I got it up to 20. Obviously, I overdid it a bit. But the water is nice and clear, if a little chlorine-smelling (for my family's use, I like to keep the CYA and chlorine level very low, and just add bleach every day or so). For the party, I'm fine with it.