Thanks very much! Now I won't freak out and send DH to the store for bleach when I see .5 CC.

I'm in the middle of the state, so I'll tone down the filter time a bit, but keep things mostly normal until it's warmer.

It's too cold to swim now, but I do remember years when I was in the pool in January!

Have a wonderful Christmas (or any other holiday you celbrate!),

Jennifer