Every morning I vacuum dead algae from my pool. The water is clear. As I vacuum half the pool the turbulence from the return valve stirs up the water before I can vacuum the whole pool. The pool (above ground 9000 gallons) becomes gray murky. I have been doing this for 2 weeks and the water never seems to fully clear up. However after sitting overnight the water becomes clear again and the dead algae settles on the bottom. Then I vacuum again and the cycle repeats itself. When will this pool ever get clear? All my chemical level are fine, ph is 7.4, chlorine is 3. What gives? I don't think that I am generating an new algae because I super shocked it for a few days until the green turn foggy gray.