Several posters here this year have been unable to clear cloudy pools after killing all the algae and getting rid of CC. Oversized pumps with undersized sand filters is common to many of these pools. Ben has surmised that these pumps may be pushing dead algae through the sand filter and back to the pool, grinding the dead algae into particles too small to filter. "Let it settle and vacuum to waste" is an attempt to clear these minute particles.

Would you please give us (I can't find them if you have) pump and motor model number and filter make and model.

In the meantime, keep your FC above 15 (18 is fine) and brush the pool regularly until you lose less than 1ppm FC overnight and have no (or nearly no) CC.

You can move the filter to recirc if you want. Did you get the guage? Has your pressure been rising?

BBB for clearing a mess:
Bleach - Bleach - Bleach, Brush - Brush - Brush

note: Aylad and I were posting at the same time (I'm slower) but we're saying the same thing.