First post from me as required. Looking for lesser expensive granular chlorine 25 to 50lbs. I think that I should be looking for 99% sodium dichloro-s-triazinetrione dihydrate with about 56% available chlorine. Prices are all over the map from Leslies to Lowes to Sams. Which brings me to the Sams "PoolBrand" granular chlorine that has the exact same ingredients as the "good stuff" with claimed 55.5% available chlorine. It's pretty cheap for 50 lbs, but I wonder what I am getting, and will it really be as good as a name brand like "Regal" or Leslies branded "Chlor Brite"? I would do a search before posting this question, but I have to have one successful post before I can search...sorry!

10,000 gal. chlorine/DE filter pool