By Tom Carter | Executive Director
What is a WAPI? The strange sounding name comes from the initials “WAter Pasteurization Indicator”. It’s a small plastic tube that contains a special wax. The wax is formulated to melt at the temperature of Pasteurization, about 160F. Pathogenic organisms such as bacteria cannot live at that temperature. When water or milk or other liquids are heated to 160F any bacteria in them are killed and the liquid is “pasteurized”. Virtually all harmful bacteria, viruses and other organisms are easily killed by pasteurization, including TB, Cholera, Typhoid, Hepatitis Type A, E. coli and many others. If we place a WAPI in the water and heat the water until the wax melts we know we have killed any harmful organisms that might be in the water and it is now safe to drink.
Pasteurization is a simple, safe technique that has several advantages over other water purification methods. Boiling water also kills pathogens but takes more time and higher temperatures. Some people dislike the taste of boiled water. Pasteurization temperature is lower and safer and does not affect the taste of the water. There are savings in fuel costs and water can even be pasteurized in a simple solar reflector oven.
Adding chlorine in tablets or even simple household bleach will also make water safe to drink, but again some people dislike the taste or find that the cost or supply is a problem.
Many other methods have been advocated for purifying water, including various filters, sunlight UV disinfection and electrical currents, but all have issues with cost, reliability, practicality, or durability.
The WAPI is a very simple, inexpensive device that is easily understood and adopted by families around the world and can be reused thousands of times. For over 10 years Agua Pura has been teaching local communities throughout Latin America about how to test their water for contamination and and how to purify it using WAPIs or other methods. Our original goal was to distribute 1000 WAPIs and we have since passed that goal many times over. Our partner organization, Extra Mile Miinistries that makes the WAPIs we use, has distributed many thousands of highest quality WAPIs throughout the world. They have also developed special equipment to manufacture them more efficiently and now with them we are establishing programs in different countries to make WAPIs there, so that many more thousands can be provided to families.
Supporters of our program such as you have made our work possible, thank you so much! Can you make a special contribution to Agua Pura to help make and distribute more WAPIs? We would really appreciate it!
Would you like a WAPI for yourself to see how they work? Please write to me and I will send you one! They’re great for camping and emergencies and you will see how your support of Agua Pura is helping to save lives.
Thanks again,
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