Newbie - Help

[Watermom]

You are right - you want CC to be 0 and FC = TC. (FC + CC = TC)

The connection between cya level changes from closing to opening and need for chlorine is explained in the third post of the following thread.

http://www.poolforum.com/pf2/showthread.php?t=1001

[waterbear]

Brad,
Watermon nailed it! check out the thread. PoolDoc (Ben) explains it all! It REALLY isn't rocket science once you understand what is going on.