Quote Originally Posted by l1tech View Post
I will be draining my pool this weekend in order to get my CYA back in check (it measures off the scale). In what order should I get the pool water back in balance. I was thinking first ph then cya and then fc/cc, what about ca?
First pH, then FC because you can do this in a day before algae takes over, then CYA (this will take far longer, up to a week).

If your pool is vinyl, don't worry about calcium unless it's too HIGH. If it's hard rather than vinyl or fiberglass, you can add calcium or chlorinate with Cal-Hypo rather than bleach. You can do that with vinyl as well but you don't have to.

You also need to worry about T/A and get that in balance.