Long story short, we came back from a 7 day vacation to a blue-greenish cloudy pool. Before I left for vacation the pool was clear, I shocked the pool with chlorine, and added 1 puck to the skimmer and 2 pucks to the floater, covered with NEW clear solar cover. (the old one was blue)
Home Day 1=FC 0 TC 0, PH 7.2. Pool temp 80. Shocked the pool with liquid chlorine, added well water. Day 2 still cloudy and bluish. FC 0. PH 7.2 Cyanuric Acid (CA) 0. Backwashed, Shocked with liquid chlorine, added CA (stabalizer) to sock and skimmer, and added well water. Day 3 today VERY GREEN...FC 0, CA 0, PH 7. Nitrates 0. (I have problems with nitrates when I open the pool) Shocked pool with powder shock, added borax to raise PH, added CA to sock and skimmer. My chlorine is holding at FC 4.3 for the last 5 hours, PH is back up to 7.2, but my pool is very green and I still have no CA reading. I need to add more well water, I usually add metal out also but not usually until chlorine is lower. Not sure what is going on. We bought a new pump this summer Pentair, and have it running on speed 3, for 24/7. Possibly due to have sand filter (Zeolite) changed??? Pool looks clearer (i can see shallow end), but VERY GREEN, and I can see some metal staining. I know, I am missing something, but what??????????? And what do I do next?