How water harvesting is useful in today's scenario?

Rainwater harvesting is the simple process used to conserve rainwater by collecting, storing, conveying and purifying of rainwater that runs off from rooftops, parks, roads, open grounds for later use.

Water Harvesting is useful in today's scenario as- 

1. It helps in reducing the cost of the water bill.

2. It promotes water and energy conservation.

3. It improves the quality and quantity of groundwater.

4. It does not require a filtration system for landscape irrigation.

5. It reduces soil erosion, stormwater runoff, flooding, and pollution of surface water with fertilizers, pesticides, metals and other sediments.

6. It is a source of water for landscape irrigation with no chemicals and dissolved salts and free from all minerals.