Methods of Rain water Harvesting

Before adopting a rainwater harvesting method, the soil characteristics, topography, rainfall pattern and climatic conditions should be understood. The most common method of rainwater harvesting is roof top rainwater harvesting.

Roof Top Rainwater Harvesting method :

It is the method of collecting rainwater from roof of the building and storing it in the ground our future use.

It is the low cost and effective technique for urban houses and buildings. The rainwater from the top of the roofs, road surfaces, play grounds, openlands is diverted into the surface tank (or) recharge pits through a delivery system, which can be later used for several purposes. Also, it can be used to recharge under ground aquifiers by diverting the water from stored water to dug-well or borewells.

Note : The pit base is filled with stones and sand, which serves as sand filter.

Advantages of Rainwater Harvesting :

1. Reduction in the use of current for pumping water.

2. Mitigating the effects of droughts and achieving drought proofing.

3.Increasing the availability of water from well.

4.Rise in ground water levels.

5.Minimizing the soil erosion and flood hazards.

6.Upgrading the social and environmental status.

7.Future generation is assured of water.

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