Step-2: Purify Your Water. The best purification method is to boil the water, or use a high-quality water purification filter system such as the Katadyn Pocket Water Filter ($370). However, chlorinating the water with inexpensive household bleach or chlorine tablets is nearly as effective. read more
My primary system has 3 filters and will be used if I need to purify questionable water. From there, you would dispense the water and add 4 drops of non-scented bleach per gallon, let it sit for at least 15 minutes. read more