Chem Geek,
I've migrated from The Pool Forum to here, but I still lurk around the Pool Forum. It's nice to see familiar names on this site like yours and Water Bear. I believe I've seen both your names from the Pool Forum before.
Getting back to the topic, I've never used Dichlor -- at least I don't think I have. I've always used the white pellets that dissolves. For the past two years, I've used the white pellets and I don't get good results. I'm probably not adding enough. But am afraid to because I don't want my CYA to go up too high. When I open my pool in May, I will give Dichlor a try. Can you point me to the calculator?
Thanks.