We do have those tablet things that have CYA in them that we were attempting to chlorinate with, so there's why we have a little bit of CYA in there because of those.

So I guess I'll base my chlorine amount on the CYA level from the pool store to shock.

I will not, however, add acid to my pool if I don't need it. Is 7.8 too high? Should I shock first and worry about the pH later?