Essential System #9 – Hydration
...tructions for purifying water with iodine or chlorine can be found on this page. Filters, however, do not kill viruses which include hepatitis A., Norwalk virus, and rotavirus and are present when water becomes contaminated by the feces of affected individuals. In other words, bad dookie in the water. To kill viruses you need to use either iodine, bleach or expensive filters which also use iodine or electrostatic charges. Boiling water for at leas...