Hi, so I’m ready to open the pool. It has a pretty big algae. My numbers when I tested are: FC-1(it was very faintly pink-I gave it a 1-could be less); Cal H-50; Alk 40; CYA- filled tube all the way to top of tube and could still see circle. PH was off the tube colorwise (I estimated it at 10). I have vacuumed to waste once. So I’m figuring I need to slam it but because of CYA situation don’t hardly know how to figure how much of what to add... any recommendation would be appreciated. Thanks in advance...