Wow, that is some pretty water. Great job!
CC, or combined chlorines, are the result of your FC, free chlorine, attacking stuff that isn't supposed to be in your pool. If your CC is above .5 you would continue to keep your FC at shock level until the CC's are .5 or less and you have no overnight chlorine loss.
CC, or combined chlorines, are the result of your FC, free chlorine, attacking stuff that isn't supposed to be in your pool. If your CC is above .5 you would continue to keep your FC at shock level until the CC's are .5 or less and you have no overnight chlorine loss.