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HomeSurvivalWater

Birch Bark Water Filter

 
A fairly decent water filter can be made from a roll of birch bark and various other materials such as grasses, sand, and charcoal. Please keep in mind that this type of water filter is for emergency use only, as it cannot filter out all bacteria, chemicals and viruses, as well as probably not catching giardia.
 
 

Diagram is Copyright 2008 Leatha S. Warden