Passive Water Filtration

The gold standard for passive water filtration is the Berkey ceramic permanent water filter. You just put rain water, river water, or even well water into the top, and wait for it to gravity feed through the permanent filter. One of these makes enough water for about three people per day.

Berkey Water Filter

Many of the communities I’ve visited will have four or five of these set up and running constantly in order to provide enough safe drinking water for the whole community.