Rural Lifestyle

Life in Rural America

Tag: water purification

Is Two Step Water Purification Needed?

Maxpedition Condor II backpack next to creek

Is two step water purification needed? This could be in the event of a collapse of society, or on a hiking / camping trip.

There is a common misconception about filtration and purification. Filtration removes bacteria, protozoa and cyst, but does nothing to viruses. Purification affects bacteria, protozoa, cyst and viruses. Purification can be by any means – UV light, filters that remove a virus, chemical treatment.. etc.

Most water filters on the market have a pore size of 0.1 microns. The CDC recommends a maximum pore size of 0.01 microns for viruses. If a purifier says it has a pore size of .1 or .2 microns, it is only a filter. A virus will slip through a .1 or .2 micron filter.

Steripen Sidewinder First Impressions

Steripen Sidewinder Water PurifierThe Steripen Sidewinder is a hand powered unit that purifies water with UV light. Being hand powered means you can use the unit when there is no electrify, and no batteries required. The SteriPen website claims the UV bulb is supposed to be good for 8,000 one liter treatments. That is an estimated 2,116 gallons of water.

Fill the included water bottle, then crank the handle for 90 seconds. If you are not cranking fast enough, there are two LEDs that will flash red. When the 90 seconds of cranking has been achieved, the LEDs will flash green.

Instead of cranking for a full 90 seconds, you can crank for 30 seconds, swirl the unit, crank for 30 seconds, swirl the unit, crank for 30 seconds, swirl the unit. the SteriPen website says not to pause between cranking for more then about 6 or 7 seconds.

For those of you that do not know the difference between water filtration and water purification:

Water Filter – removes most waterborne pathogens, but does not remove or kill viruses.

Water Purifier – removes or kills everything, including viruses.

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Kevin Felts © 2008 - 2018