My pool was cured!!!!
It has been crystal clear every day since. I have about 30 PPM CYA.
The water stays clear with 2 or 3 PPM FC.
I use tabs with the chlorinator set low. I "shock" with a large bottle of Chlorox once a week.
I add Polyquat as per the bottle for algae control although I don't know if I really need to.
NO problems!!! The pool almost maintains itself.
I think the water was just too cruddy to work with.