In several occasions will need water when we’re just far away from the “civilization” and from bottled water. In developing countries like the ones in SE Asia the water can have a lot of microbes. Some of them will cause only traveler’s diarrhea, but other ones could cause Cholera, Hepatitis and other more serious diseases. Even when immunized, we must be careful (and I guess nobody want to be all day shitting ).
If we need to take water from a river, a lake or even a suspect pat we can kill water microorganisms in one of the following ways (short by reliability): Continue reading