What he said. I might add that if there's something abnormal, you may need to add more. By abnormal I mean: plumbing catastrophe where half the pool gets emptied; torrential rains where the pool overflows; 400 pound neighbor entertains the kids by doing cannonballs.
Thanks guys-reason I'm asking is- I test for chlorine and ph daily and am addiing a fair amount of bleach- probably 80 ounces a day and that barely keeps me at 3-4 ppm of FC. I have only tested for CYA a couple of times- CYA actually helps retain chlorine right?
The trouble free pool method really doesn't seem to be the money saver over Pristine Blue that I thought it would be.... (if I'm implementing it like its supposed to be)....but the pool sure does look better!