Researching Device Options -The chemicals that we considered using were to expensive for our intended use. - The Coffee, ground, and paper filters would of worked and would of been cost efficient, however, we did not think that they would produce the correct NTU. -The Distillery is cost effective because it uses natural resources such as fire and steam. Also, it is the most effective way to create the lowest NTU.
Distillation: In industry you can find huge water distillation plants with the capacity to produce thousands of liters. Alternatively, compact water distillers are available for use in the home, office or lab which can produce distilled water on a greatly reduced scale. Some people simply prefer to buy distilled water as and when they need it. But you have to remember that once a bottle of distilled water is opened, the contents deteriorate so opened bottles should be stored in a cool, dark place with the lids tightly sealed. http://www.thechemicalblog.co.uk/water-distiller/
Iodine: Whether camping, canoeing, hunting, or engaging in any sort of outdoor activity, it pays to be mindful of your water supply. A bottle of Potable Aqua® tablets takes up very little space, weigh less than a pound, and when used correctly will protect you from a host of parasites, viruses and bacteria. http://www.potableaqua.com/uses.php
UAV Light: THe UAV light is way too expensive to use in third world countries. One light costs $344.99