Pool had a lot of algae and now finally balanced and algae gone but

The water near the steps.. about 3.5 feet is clear but the deep end of it.. 11ft portion still remains cloudy. I put an algaecide and that cleared off after a few days and I vac out the 'white' stuff that remains below.I also put in DE which helps to capture the microscopic particles.. from 8-11 ft the water remains cloudy. What can I do. I had filled water back to remove impurities before and that worked out well but now it is not...By the way pool chemically is all balanced with the SWG.