Well the season is underway, a couple of days ago, the cover came off, yesterday we got the water filled to the brim, today I got the pump running. Checked the chems, FC=.5, CYA=0, PH=7.0, TA=150. Hmm, there is a 7kg bucket of "Sanitizer" I know that is roughly 50-50 CL and CYA, dumped a...