India’s Water Warrior Has a Solution for India’s Droughts
Ayyappa says the earth is the biggest filter. He captures the water, filters it and then stores it underground by his pit-based rainwater harvesting system, a structure made of boulders, gravel, sand, and mud. When it rains, water trickles through the gravel and sand, slowly charges the subsoil, and ensures the soil is always charged with water.
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