Opening to a cloudy pool, CYA gone

[sharknj]

Here are my readings when I closed last fall compared to today. It’s a 24K gallon in-ground pool, with a SWG which isn't running yet.

Closing - Today
FC 13.0 - 0.0
CC 0.0 - 0.0
pH 7.5 - 6.8 (I added 18 inches of low pH well water last week)
Alk 60 - 40
CYA 50 - 0

The water was slightly cloudy and the liner was coated with what appeared to be pollen, even though it's been covered since closing. I added 4.5 gallons of bleach which should bring it to 10 to 11 ppm, which I'm guessing is shock level with no CYA. I have the pool cover on about two thirds to try to prevent the sun from eating up the choline. Not sure if it's relevant, but I also added a quart of Jack’s Purple Stuff (I had previously added 3 quarts while bringing the water level up 18 inches last week- I’ve had bad iron staining in past years). I brushed the walls thoroughly. 3 hours later the water is very cloudy- I can barely see the drains. My FC is now 1.0 and CC is 5.5.

The last time I opened with no CYA, I had a pink algae problem a few weeks later. Could pink algae be using up the CYA? What should I tackle first? Keep adding bleach until no CC? Bring up the CYA? Bring up the pH? All three? Any help would be greatly appreciated! -Steve