Clarification of "tied up" vs "Free"?

[chem geek]

This thread has gotten a bit over my head as I'm not a chemist.
So I have 3 questions.
1. Is chlorine tied up in CYA a part of CC or not.
2. If they ar different, is there a better name for the "tied up"chlorine?
3. If they are different, than the tied up chlorine must be measured in both TC and FC, or neither so as not to affect on CC. [TC-FC=CC]
Which is the case?

Sorry I got too technical for you. Some people want the technical details while others (most) do not.

1. Chlorine tied up in CYA is NOT part of calculated CC which is TC-FC.

2. How about "buffered chlorine" or "reserved chlorine"? Anyone else have a better suggestion? Whatever terminology that is used should convey the fact that the chlorine is available to do work but is not "ready" for work right now. It's kind of like the army reserves. They aren't on active duty so if there were an immediate attack they aren't available, but as active duty people get captured or killed then reserves are called up to fill in and become newly active duty people.

3. Yes, the chlorine tied up in CYA is measured in both FC and TC.

[EDIT]Another way to look at it is that chlorine tied up in CYA is measured along with untied chlorine as FC. Your test kit cannot distinguish beween chlorine tied up in CYA and chlorine that is not tied up (untied chlorine is both free and immediately available to disinfect and prevent algae).[END-EDIT]

Richard