I have had to shock twice. Had a bunch of kids and a storm witch dumped a bunch of organics. My CC hit around 2 so I dosed to a level of 25 and held it there for a day or so. My CC droped to around 0.5 to 1 and held there. I dont have a feally good test kit this year. I have a DPD but not a FAS-DPD. I bought this kit before I found this site early in the season. I WILL have one for Ben's kits for next season.
Steve