Jan is right. Stop adding stuff, you are just making it worse.

If you have an FC of 10-12 and add 1 quart of 60% Polyquat algaecide, in 48 hours your FC will be ZERO! That's just how PolyQuat works. I even figure that in to my pool closing--after the FC sinks I add bleach back to the shock level and close.

You need to add 4 gallons of 10% all at once. Then see where your FC is in an hour. Check and adjust FC 3 times a day--You have approximately 20,000 gallons (the difference is negligible). One gallon of 6% should add 3ppm, and one gallon of 10% should add 5%. You NEED to get your FC to between 15 and 20 ppm and keep it there! Otherwise you won't kill the algae.

I have NO idea what all the other junk you added has done. I NEVER use or have used anything but polyquat. I came home from 2 1/2 weeks on vacation to my own cloudy, green pool and it is now crystal, crystal clear again, and was in less than a week...I followed the same advice I, Jan and Lisa are giving you.

It works. We've seen it work for other owners many, many times and for ourselves as well.