My CYA slowly dropped to 60 with dilution and I noticed I needed to turn the output up a little on my SWG to maintain my FC. I did raise there CYA back to 75 (and may go a little more just to see what happens) and I was able to turn the output down. I know my chlorine use depends on weather, temp and pool load. Just curious if anyone else sees this correlation. This is my first year with a SWG and I love it! I don't miss all of the little bleach spots on my clothes.