FC is 1.5 and CC is 1.5, so since CC is not 0, it is time to shock, right? :)
(I'm a shock virgin)
So if you think I should do 10ppm, which I'm fine with at this point, then it seems like I need to add:
10,000Galls to go from 1.5ppm to 10ppm = 176oz of 6% bleach, which is 1gallon, 1qt, and...