I'm decontaminating my tub now and intend to start the dichlor/chlorine this week. I've got my 6% unscented bleach but not sure what to get for dichlor. I found some small bags of Swimmers Choice granular shock for $4 that contain "Sodium Dichloroisocyanurate dihydrate". Is this the stuff I want to use or is there a better option? Also, since this is a powder, does it measure the same as liquid? In other words, if the pool calculator calls for 1 oz. can I just pour that amount in a measuring cup, just like I would measure a liquid?
I did get a couple bags so I could super-chlorinate and drain after running the spa flush.
Thanks in advance for any help,