Aquamira Water Treatment Kit
Aquamira employs chlorine dioxide, a substance used by hundreds of city water authorities to disinfect water. In an Aquamira bottle cap, mix 7 drops of Aquamira's Part A (the chlorine dioxide) with 7 drops of Part B (the phosphoric acid activator). Wait 5 minutes, then dump the mix into a liter of water. Wait another 15 minutes, or longer if the water is cold, then drink.
An Aquamira kit consisting of two 1-ounce bottles will treat up to 30 gallons of water and has a shelf life of 4 years.