PURIFYING WATER Other than fresh rainfall, it’s safest to ass | Guerrilla Warfare School

PURIFYING WATER

Other than fresh rainfall, it’s safest to assume that all water is contaminated. In order to avoid the effects of contaminants like giardia and dysentery, water must be purified or filtered. Boiling water is considered to be the most effective way to kill bacteria, viral contaminants and parasites; however, modern water filters and chemical agents effectively eliminate the vast majority of pathogens. Since boiling water takes time and building a fire constitutes the risk of detection, it is advisable that chemical agents such as iodine tablets or water filters such as the Sawyer be kept on hands at all times in the field. If necessary, bleach can be used to purify water, according to the chart below.