I picked these up at my local store, and I was excited to find a 32 count bottle of Ultra Concentrated BLEACH tablets for less than $3.00.
But wait, here is the kicker. On the right hand side in very, and I mean very, small print it says, " Not for sanitation or disinfection". Really? Bleach should kill pathogens. So, this means it isn't or can't be used for water purification. I did email Evolve about 3 weeks ago and asked these very same questions. Can it be used for water purification? Does it kill bacteria and viruses? So far, I haven't received an email in return.
I decided that if they wouldn't respond, I'll do my own digging around. Bleach has a chemical formula of NaOCl or sodium hypochlorite for the chemists.
Evolve has the chemical formula of Sodium dichloroisocyanurate dihydrate 25-100% , Citric acid monohydrate 1-10% , and Sodium carbonate 1-10%. These were taken from the MSDS, that can be seen here
Evolve is NOT bleach and should NOT be used for water purification.
If you are looking for a granular form of water purification that is easy to store, then take a look at pool shock, it's chemical formula is calcium hypochlorite. It is an excellent form of water purification, and comes in a dry form that is easier to store than liquid bleach. Bleach has a recommended shelf life of 6 months to a year. I've also provided a link to Survival Mom's PDF on the use of Pool Shock for water purification.
So, just an informative FYI to help everyone save money.
I've also include a search engine result from Google for using pool shock to purify water if you'd like to research further into the topic.