.5 cc after closing

I cleaned my pool as best I could and covered it. I measured the chemicals today, as I've read to keep an eye on the readings and I was suprised by a .5 cc reading. I haven't had a cc reading for months. Is this normal and can it wait till spring or will I end up with a mess. Temps here are still getting into 70's so it is'nt freezing and I could uncover it and shock it , although it is a huge pool. 25,000 gallon. Thanks for any help. I sure appreciate this forum.:) Sharon

fc-5.5
cc-.5
ph-7.8
alc-80

What is your cya reading? I wouldn't worry about a CC reading of 0 as long as your chlorine reading is adequate for your cya level.

Watermom

my cya is 45. Thanks for your reply. I'm so thankful to have some where to come with my ?'s. Sharon