Evolve Bleach tablets. There a lot of discussions about bleach alternatives or making your own bleach.
So here it is the easy button
Evolve bleach tablets 1 tablet = 1 Gallon of Bleach
Simple easy to store long self life. I kept them in the original plastic bottle and put the bottle in a zip lock bag to cut down on the order.
Anyways thought this might help some you can search for it on google I got mine on ebay I think they are made for south or central american countries.
Hope this helps someone out