We’re helping families build BioSand Filters, which kill 99% of bacteria in dirty water. It is a simple, low-cost solution that cleans water quickly using a biological process.
Dirty water is collected from ponds, then poured into the top of the BioSand Filter.
This is the first and most important layer: a biological film made of microorganisms eats 99% of harmful bacteria in the dirty water.
A layer of specialized sand physically traps any remaining bacterial particles.
The coarse sand begins to separate the clean water from the particles of fine sand.
The gravel layer serves as an elevation bed and keeps sand away from the pipe opening, while guiding clean water out.
Clean water is forced out of the spout every time more dirty water is poured through the top. Hurray for natural filtration.
When a family wants a BioSand Filter, we make sure they’re invested in bringing clean water to their home. To show their interest, they contribute a small amount of their own money for the building materials, attend a hygiene training class, and build their own filters under the supervision of local masons. This helps families understand their filters (and understand how to care for them). It helps our results last for long after our partners’ work is done.Learn More
Schools that now have BioSand Filters
Communities now have access to clean water
BioSand Filters have been funded to date
There are more than 5 million people in Cambodia who don’t have access to clean water. We need your help to continue making a difference.
Population of Cambodia
Lack access to clean water
Lack access to sanitation
Live below the poverty line
We’ve been working with CLEAR Cambodia since 2009. Their vision is to help rural Cambodians improve their health through better access to clean, safe water. The staff at CLEAR work closely with community leaders and local authorities to implement low-cost, sustainable clean water solutions in rural villages and schools. And since they ask families to contribute both time and money to every project, their work has long-lasting results.Visit CLEAR Cambodia's Site
Have questions about sponsoring a project? Please get in touch with our team.