I bought Clorox splash proof at SAMs club. It has put a thin layer of foam on top. Due to mechanical problems, I just got the pool uncovered this morning and had 15 bottles of the stuff ready to go in, so it's in. Pool had a lot of green and mustard algae in, but not as much as I thought it would, opening it up so late.
Since the chorine already dropped to less than 5ppm, I just put in some plain old bleach and added cya. It's starting to turn blue, but I will need more bleach by tomorrow.
Stay away from the "splash proof" Clorox, it will foam on you.