If your water supply is not known to be safe or has become polluted, it should be purified before use. Water purification is generally a two-step process.

Step 1: Clarify

Cloudy or dirty water must first be made clear. It may be passed through filter paper, fine cloth, or other filter. It may be allowed to settle and the clear water on top carefully drawn. Filtered or clear settled water should always be disinfected before use.

Step 2: Disinfect

Boiling Method

Bringing water to a rolling boil for 3 to 5 minutes will kill most water-borne microorganisms. However, prolonged boiling of small quantities of water may concentrate toxic contaminants if present.

Bleach Method

Adding 1/8 of a teaspoon (8 drops) of fresh liquid household chlorine bleach (5 to 6% sodium hypochlorite) to every gallon (4 liters) of water will kill most microorganisms. Only household bleach without thickeners, scents, or additives should be used. The use of bleach does not address toxic contamination.

The U. S. Environmental Protection Agency Web site provides additional information about water purification.

Commercial Water Filters

Commercial water filters can effectively filter and purify water contaminated with microorganisms, toxic chemicals, and heavy metals. Their effectiveness depends on design, condition, and proper use. Water filters produced by Seychelle have been used successfully by Church missionaries for many years.

To learn more and to find local emergency preparedness stores, search the Internet for water purification and emergency preparedness supplies.
www.seychelle.com
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