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Here is what I have found for a very basic set up with a cheap water bottle. The water will be pored through the top through gravel, sand, charcoal and finally either a screen or another mechanism to prevent the filtering substances from getting into the water. Like this, | | |GGGG| |SSSS| |CCCC| |00| | = Water bottle edge G = Gravel S = Sand C = ...


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Is it safe to drink water from streams in Dartmoor using simple purification methods? Basically it depends on the water source. Follow some general rules and you should be fine though. boil for four minutes to kill off any nasties. bear in mind this won't remove all polutants, something like mercury will not be affected by boiling. A nano filter (...



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