Hi, Sandy,

You're making progress but you need to keep your pool at shock level 'til your water looks like you want it.

That cloudiness is dead algae but it's probably not all dead......because your still consuming Cl.

I would recommend you use the color of your water as the bellweather. When it's crystal clear....you're done. More precisely, you're Cl should not drop from shock level more than 1-2ppm overnight.

Test right at dusk and add Cl. Then test first thing next AM to see where you are.

Meantime, let your filter do it's job. Stir up the cloudiness or vacuum it up and let that sand filter clear your pool.

Nice work to this point. May take a while longer but keep the Cl in there and run that pump 24/7, backwashing when necessary.