Water Procurement: Water Filtration Devices

If the water you find is also muddy, stagnant, and foul smelling, you can clear the water--

• By placing it in a container and letting it stand for 12 hours.
• By pouring it through a filtering system.

To make a filtering system, place several centimeters or layers of filtering material such as sand, crushed rock, charcoal, or cloth in bamboo, a hollow log, or an article of clothing (Figure 6-9).

Remove the odor from water by adding charcoal from your fire. Let the water stand for 45 minutes before drinking it.