Biosand Water Filters

Biosand Water Filter- Decorated with Leaves on GreenThe biosand water filter (BSF) is a simple, yet highly effective adaptation of the traditional slow sand filter, which has been used for community drinking water treatment for almost 200 years. The biosand filter is smaller (3 feet tall and 1 foot square) and adapted for intermittent use, making it suitable for use in people’s homes. The filter container can be made of concrete or plastic and is filled with layers of specially selected and prepared sand and gravel. The sand layer removes pathogens and suspended solids from contaminated drinking water.

Learn more about our humanitarian work with BioSand Water Filters at FriendlyWater.net. You can also follow our efforts on our facebook page for World Water Warriors.

If you live in the United States or Canada and you’d like a BioSand Filter for use with a rainwater catchment system, non-chlorinated water supply, or emergency preparedness, contact us or call 253-203-6626.

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