Bru-Clean TbC is a powerful neutral pH disinfectant (with minor levels of detergent) effective against a broad array of pathogens including canine parvo virus & distemper, bordetella (Kennel Cough) and even TB. Yet, its active ingredient, sodium dichloroisocyanurate (NADCC) is used worldwide to purify drinking water. Tablets dissolve in about 2 1/2 minutes requiring 1 tablet per gallon of water. With 270 tablets per tub this makes 270 gallons of use solution. Solution is good for 24 hours once activated and the tablets have a 1 year stability prior to activation. Bru-Clean TbC is 50% less corrosive to metals than bleach and biodegrades to ammonia and carbon dioxide.