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Rainwater harvesting, simply explained

Six ideas that make up a complete urban rainwater harvesting system.

What is it?

Collecting and storing rain from surfaces like rooftops instead of letting it run off into drains.

Supplements supply, recharges aquifers, reduces flooding and lowers dependence on groundwater.

The roof acts as a catchment; gutters and downpipes channel water to filters and storage.

Tanks or sumps store filtered water for later use. Size depends on rainfall and demand.

Pits, trenches or recharge wells let excess water percolate into the ground safely.

Stored water can serve flushing, gardening, cleaning — and potable use after proper treatment.