My pool company is opening my pool on Friday. Its only my second season so will be doing it my self eventually but don't have the time to mess with it right now. They sent me this regarding chemicals..
"When we open the pool we like to have 97% shock, 60% algaecide, stain & scale and clarifier. This also depends on how the water looks when we take off the cover.
I think with the new cover, it should open up pretty good. We do carry all chemicals on the service truck for your convenience. "
Id like to have as much here as possible but the 97% shock doesn't seem available online anywhere. Maybe only available in pool stores?