What is rainwater harvesting?why is it …

Rainwater which falls on roofs and terraces of buildings can be collected through pipes and stored in underground tanks or can be allowed to percolate into the soil and used to recharge the groundwater table. This is called water harvesting or rainwater harvesting. The main aim of rainwater harvesting is to check the runoff water.

The benefits of rainwater harvesting system are listed below.

• Less of cost
• Helps in reducing the water bill
• Decreases the demand for water
• Reduces the need for imported water
• Promotes both water and energy conservation
• Improves the quality and quantity of groundwater
• Does not require a filtration system for landscape irrigation
• This technology is relatively simple, easy to install and operate
• It reduces soil erosion, stormwater runoff, flooding, and pollution of surface water with fertilizers, pesticides, metals and other sediments.