Pulled the cover off my pool about a week ago to find a green mess. I dumped bleach in to kill the algae. For the first week I kept the chlorine level at around 20 ppm. The pool cleaned up some but is still a cloudy, light teal blue. I can see about half way down the sides on the deep end which is ~8 feet.

Here are my current numbers:

pH: 7.6
TA: 80
Calcium Hardness: 230
CYA: 40
TDS: 800

Since I found my CYA level to by ~40, I have been keeping my chorine levels around 15 to try to clear it up. I am thinking maybe the problem isn't algae. How can I clear up the water and getting in swimming condition... Hopefully by May 16, when my daughter wants to have swimming party (brrrrrrr) for her birthday.

BTW, If I lower the pH with muriatic acid, "about how much" do I add to lower the pH "about how much"?

Thanks,
Ed