So far, so good. It looks like it does reduce CC taking somewhere between 1 and 8 hours to do so. After you start adding bleach after measuring tomorrow night, you can measure within an hour and then add more bleach. Repeat until you start to measure FC that should then hold and we'll see if the CC returns or not.

If the CC returns after adding bleach, then that would mean the hydrogen peroxide was just acting as a reducing agent to get rid of CC, but then adding a chlorine oxidizer again would recreate CC. If instead the CC doesn't return after adding bleach, then that means the hydrogen peroxide oxidizes the CC to truly get rid of it. Let's keep our fingers crossed that the latter is what is happening.