I was looking for chlorine tabs without trichlor. I have a 55gal pool and handling all the jugs of bleach gets old while I am moving to get up to shock value without increasing CYA.
Homedepot had a 16lb pail of HTH yellow top pails for ~$55. The yellow top HTH are the line without trichlor. Each tab yielded 49% avail chlorine.
While I was looking in the plumbing section, I found this "Blue Crystal" stuff. The 10lb pail was $68. Look like it's marketed for wastewaster treatment and not specifically for a swimming pool.
Specs look good:
Active Ingredient - Calcium Hypochlorite Ca (OCl)
Available Chlorine 70%
Inert Ingredients 30%
Has anybody tried these on a swimming pool?