Tuesday, August 27, 2013

DIY Gravity Water Purification System

Survival Cache has a nice article and photos showing how to build your own gravity water purification system using two 5-gallon buckets and a water dome filter (and few other odds and ends). My only comment is that I would recommend using a food grade plastic bucket and not the cheap orange buckets from Home Depot.

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The Bystander Effect--Fact And Fiction

 Greg Ellifritz's most recent Weekend Knowledge Dump  included a link to an article on the bystander effect published at Aeon Magazine a...