FC - 21
CC - .5
TC - 21.5
PH - 6.8 or < (yellow)
Alk - 60
Cal - 40
CYA - 0
Temp - @40

IG, Vinyl liner @22,000 Gal. W/chlorine that high, should I try to correct everything now? And I have a LP heater so I guess I should get the Cal. up as well?

We had a few problems last year with algae blooms and PH/Alk all over the place. We've used the pucks ( 3B's now ) for chlorination, so I expected CYA to be at least a reading, but nothing. I have some pucks left over ... shall I throw them in there (or get the PH up first?)? I had a mesh cover and although the pool is filthy, it doesn't look that bad algae-wise. On to vacuuming...

Any tips on where to really start would be appreciated, thanks!! I know it needs work.