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| Keywords: Homemade waterfilter.jpg en A hand-drawn picture of a diy-waterfilter which can be made in the field with commonly available materials branches cloth sand charcoal and grass It can be used to filter slightly contaminated/polluted water so that it is safe for drinking Charcoal can be produced from wood by the indirect preferred method and the direct method The direct method is easiest and requires only wood an open fire and some plant material to allow the wood to burn up incompletely see http //www velvitoil com/Charmake htm this website for links The indirect method which produces far less smoke and is healthier for environment and the person making the coal is found http //www wikihow com/Make-Charcoal here and http //www instructables com/id/How-to-Make-some-Charcoal/ here The picture has been drawn after a model from Peter Darman's The Survival Handbook own KVDP 2008-06-16 <gallery> File Filtre_ C3 A0_eau_de_plein_air svg </gallery> Irrigation Drinking water Water treatment Filters Sports equipment Hiking equipment | ||||
