I'm trying to get my water balanced and am really confused about my CYA. We had the pool opened last week, new salt system installed (previously used the BBB method), and the pool was slightly green on opening. Installer/pool opening guys put in 20 bags of salt and I believe 6 lb. of shock. Been running the system (and backwashing each day) for 5 days now and it's cleared up a ton, but I can still see tons of dead algae (just looks like a bunch of dust, so I assume its dead) at the deep end, and the water is definitely not crystal clear. I started to SLAM, but tested for all my levels first to get the appropriate FC to aim for and got...
FC - .5
pH - 7.5
Alk - 90
CYA - Not sure? I filled the tube to the top and still saw the black dot...so either it's super high or there is none? I've never had this happen so I'm most confused about it
I wasn't sure what to do with that CYA but figured in the meantime some bleach wouldn't hurt the process and it would be interesting to see if any of that "dead stuff" consumed the chlorine overnight, so that night at dark I added 384 oz. bleach. An hour later my FC was 5.5. That next morning just before the sun was up it was 6.5. Didn't add any more, and middle of the day (full sun), the level was back to .5. Added another 256 oz. last night and this morning my FC is back at 5.5. I'm so confused. Do I need to SLAM or no? Do I need stabilizer? Do I need more salt? I'm vacuuming each day to get the junk out of the bottom but it's a slow process.
I'm not sure where to go from here...any input would be greatly appreciated!