Hi CarlD,

Sorry to hear life's gotten in the way of water for you. Hope it improves. :-) Thank you very much for the info. It really helps me understand. Chemistry was never my forte. I *have* read the stickies - I printed them out years ago and keep them in a binder.

I finally now have the water clear. BTW, I don't know what "bump the thread" means. When Nefretrameses suggested doing it to get a response, I looked for a definition on the Forum before I posted again but didn't find it. Could you please explain where I can find out how to do it? I don't want to do something I shouldn't.

I've been using Cal-hypo for shock but usually use just Clorox to maintain. I finally got the CYA cranked up to 38 after multiple applications. The FC was 3-4 yesterday. (Halfway between 3 & 4)

I'll add more Clorox today. The temps got really chilly and the pool water temp went as low as 55 but the weather got hot again here in western PA and so the water is warming up also. I'll just maintain it until the temps and the water temp is consistently below 60 degrees then shut it down for the winter. I won't make the same mistake again by not opening and treating the water.

Thanks again. I really do appreciate you taking the time to answer.

CoffeeBean