Thanks to all that helped with my recurring cloudy problem. After shocking and holding it at shock level for several days the water cleared nicely. I also ran the recommended "Over night FC test" and found no lose of Chlorine. The weather got cool for a week so I put the solar cover on and tested daily to hold my FC at 4ppm. However much to my dissatisfaction by the end of the week I had a full bloom of Algae! Why the heck would Algae grow now after all that shocking and careful maintenance of my Chlorine?!!!!

So at any rate, I was forced to shock yet again and brushed several times per day. Finally after 4 days of shocking (based on the CYA best guess level) the algae cleared but the water was still fairly cloudy from all the algae particles (no longer green). It was now Friday morning and the weather was getting nice and we'd want to swim but the FC was still above 10ppm. So I added a quart of polyquat and by late afternoon the FC was way down (as I would expect) and the water was continuing to clear nicely.

As of today, my water is the clearest its been and I'm thrilled. I would describe its clarity as closest to DE quality clear as I've seen. It is sparkling and I want to keep it that way!

Because I'm very fussy about water clarity, I've also converted from Sand to Zeo in my 300lb filter. I'm also starting a weekly maintenance dose of a product called Pool Magic. My neighbor swears by it, so I figured I will give it a try. Anyone else ever try pool magic?

Another item I'm going to buy is a good robotic vac system with good internal filtration. I'm currently looking to spend around $1000 or less for either an Aquabot, Hayward Shark Vac, Tiger Shark or Aqua Clean. Seems like many have experience with Aquabot, but does anyone have experience with any of the others?

Thanks to everyone whom provided help.
Andy