I have turned to this site many times this summer but this is my first post.
24' round Above Ground (~13,500gal)
Sand Filter (Doughboy Aquaview AS model 0-1709-020) only 2 years old
Pool is full sun only 3 hours of the day
Had an algae breakout a few months ago and still haven't recovered. The cloudiness won't completely go away. Last time, I put in 4 cases of liquid chlorine from the pool store and overnight it went from green to blue...yay! But then it was cloudy and I ran the filter 24/7 but it didn't help. I have used floc, phosphate treatment, and clarifier along the way (not all at once lol). Just recently had another tinge of green starting so I put in 2 cases of liquid chlorine 2 days ago. We are blue again but cloudy. We have a party on the 3rd that I want the pool sparkling for. I have a tf-100 test kit in my possession but honestly, it intimidates me. I usually just take a sample to the pool store which has a pretty fancy testing machine. They test for FC, TC, CC, pH, Hardness, Alkalinity (w/stabilizer correction), CA, Copper and Iron.
I just did my own CA test and came back with a reading of 60ish. I tried doing FAS/DPD but it turned deep pink and I stopped at 15 drops because it wasn't changing and I didn't want to waste all the reagent. I know the chlorine is off the charts. Also attempted the Alk test but it went from green to blue (the video showed it turning pink).
As you can tell, I need some guidance.