Emergency Water Filter

7247 Views 8 Replies 8 Participants Last post by Expeditioner, Sep 21, 2009

redskies

Discussion Starter · Dec 1, 2008

If an emergency water filter was needed to be made, does anyone know how to construct one out of natural materials? I have heard you can use hollowed out logs and black ashes with other techniques to make a tube water can be filtered through, what effectiveness could be achieved and does this kind of thing work on salt water?

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