First please know I need a pool care for dummies course. I tried to find an answer to my problem but all of your #'s and acronyms are way over my head. My husband takes care of our pool. All the test strips come out perfect except ph sometimes a little high. Our water is crystal clear for the first two months we have it open then around mid-July we start to get the little spots of green dust that dissolves or floats away when touched. The water is still clear. We've shocked, vacuumed, brushed to no avail. The closest we got to back to normal was after we used flock which held it together so we could actually get it vacuumed. But in about 5 days, it's back. Last night, 24 hours after flock, my husband vacuumed to waste until none could be seen. Within an hour it's back again. It's more green with a hint of brown. My husband has decided this must just be the way it is. He's frustrated to the point that I really don't want to even offer ideas!
21X54 above ground
sunk about 1 foot
stairs in pool
sand filter
21X54 above ground
sunk about 1 foot
stairs in pool
sand filter