ok all-

I cannot get my pool to keep cl at all. I added .6 gal to a 7600 gal vinyl pool which if I did the bleachcalc correct should have raised it 5 ppm. My FC got to 3 and then 8 hours later was at 0. I origainally thought my CYA was 30-50, but now (i just have the 5 way test strips from walmart) maybe CYA is at 0 (the colors are sooo close). do you think I should try and raise the CYA a little and see what happens? what to do...

thanks!!