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Sand dams are the most cost effective method of rainwater harvesting in drylands.
Wasya wa Athi B SHG_MAIN

Walking on Water: sand dams can store up to 30 million litres of water within sand - protected from evaporation, contamination and disease.


The Excellent Development Sand Dam Manual: a practical guide for implementing sand dam technology.


Sand dams are an affordable way to simultaneously address some of the world's most critical problems: desertification, water and food insecurity, climate change, migration and conflict.

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It is wonderful to see such a thorough description of sand dams and the various processes involved in their construction. Many will find it to be of great use.

Jon Viducich, Water Engineer MCC Mozambique (2009-12)

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Sand Dam Manual

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