Wait...active ingredient is 5.25% sodium hypochlorite? That is bleach breh. Not sure what they claiming but if it works for 5 years I can keep doing what I do. How many drops per gallon?
8 drops per gallon and yea I know it's the same thing, essentially but not exactly this has been tested/formulated for water to drink, where as bleach as not and yea I know same Chem etc but I just feel safer with this but I would definitely use bleach if I had no other choice