Hiram writes “Ranger Rick” F. Tscherne, a former US Army Ranger, Drill Instructor, and an advisor/trainer, shows real means of survival one of which is how to purify water for drinking. Great learning site. Link.
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Hiram writes “Ranger Rick” F. Tscherne, a former US Army Ranger, Drill Instructor, and an advisor/trainer, shows real means of survival one of which is how to purify water for drinking. Great learning site. Link.
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