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Bio-sand Water Filters
This brief focuses on bio-sand water filters, which use sand and gravel to partly clean water with a simple approach.
Series: Practical Answers
Published: 2011
Pages: 5
eBook: 11283-314428
This brief focuses on bio-sand water filters, which use sand and gravel to partly clean water with a simple approach.
| Bio-sand Water Filters Technical Brief |
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