Algae! Oh, and 0 CYA again.

[Watermom]

FYI -- the CYA test cannot differentiate levels below 30ppm. So, your reading probably isn't 0. You are going to want to go higher than 20ppm or else you will never be able to keep any chlorine in the pool. Go ahead and add another pound of CYA.

[merideth]

Thanks, Watermom. I actually don't have too much trouble with Cl level usually - maybe b/c there are usually just the boy and me swimming and the pool is mostly shaded all day (never fully sunlit), but I have noticed a real drop after my nephews swim with us. Dirty stinky boys! Aaanyway, I put another pound of CYA into the sock and I'm going to keep the Cl level high for several days just in case. The knowledge on this forum and sister site is well worth the subscriber fee, but what's invaluable is the hand-holding and assurances from you moderators!

[Watermom]

Thanks for your kind words!

(P.S. I agree about the stinky boys, lol! I can say that; I am the mom to 3 boys myself! )