Two-Bucket Slow Sand Filter¶
BioSand & Media Filters • Est. CapEx: $10 USD • Lifespan: 7–15 Years
Technical Overview¶
A simplified, low-cost water filter using two stacked buckets for household use in developing countries. Designed for easy construction and maintenance, it has been tested and refined by university researchers.
Key Specifications & Engineering Parameters¶
| Parameter | Specification |
|---|---|
| Category | BioSand & Media Filters |
| Capital Cost (CapEx) | $10 USD |
| Power / Energy | 100% Gravity / Zero Power |
| Target Scale | Household (5–10 people) |
| Standard Lifespan | 7–15 Years |
| Technology Maturity | Field Tested |
| Primary Mechanism | Water flows by gravity from the top bucket through sand and gravel layers into the bottom bucket. A biological layer forms on the sand surface, removing pathogens and sediment through trapping and biological digestion. |
Cross-Reference & Interactive Tools¶
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