Boil Water Supply

camping water purifier Sure, the water might look fresh and clean, but there may be millions of invisible critters tumbling around in it.   Thermal treatment of water involves cooking the little buggers to death.   Boiling water is considered 100 percent effective against protozoan cysts, bacteria and viruses.

When boiling water to disinfect, there is no need to use fuel keeping it boiling for 5 or 10 minutes, regardless of your elevation. You should bring the water to a rolling boil. That's it. Even at 14,000 feet, the water will be over 185°F which is hot enough to kill whatever's doing the backstroke in there.
Boiling is simple, effective, and inexpensive way to treat your water supply. But, there are some drawbacks:

If you don't mind dirty, flat, safe water, then its fine to drink it right after boiling. But, if you're like this dude, you might want to run it through a filter before or after boiling to strain out dirt, cysts, and at least some of the dead thingies. At least it will look cleaner before drinking it.

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