I just wanted to say thanks to all that have answered my questions this last year.
I always had a little trouble keeping my pool clear and I used a LOT of chlorine.
To make a long story short, I dumped about 20% of my water and refilled. I now have my CYA down to 45 and my chlorine use is down to almost nothing.
Before I drained, a gallon of 10% per day couldn't keep me at suggested levels. Now, I'm using about 25% of what I was and the water couldn't be clearer.
Thanks again guys.