Last year was my first year of pool ownership. Lucky I found this site before I found the pool store. Last year I closed my pool unsure if I was in the middle of a problem or not. Opened this year and immediately drained my pool 3/4 because my cya was off the charts. Balance everything, and maintain proper levels. Start in on weekend pool maintenance 3 weeks ago and notice my water isn't as crisp as it usually is. Test my water everything is in range but on the low side, rebalance, swim, cover back on. Next day same thing, only now I have "dust" on the bottom. I slammed my pool passed all three. Got a little carried away one night and raised my FC level to 17, the same night I passed all three. 4 days go by no dust water I'd crisp, I'm checking everyday. Chlorine drifts back down hits 8, dust is back. Start the slam all over again. I can't get rid of it and I'm starting to get upset. What do I do? My water looks great. Please help.