RAIN WATER HARVESTING TECHNIQUE

Rain water harvesting system is a technique used in the collection and storage of rain water. Rain water is collected from many surfaces: rooftops, surface of land, and rock catchments. Traditional jars and pots are used in the collection. In recent times, more complex storage systems are used, such as underground check dams.

The techniques used by Asians and Africans have arisen from traditional practices that have been adopted by previous civilizations. Rain water harvesting system till date serves as a dominant drinking water source, especially in rural regions. Most common rain water harvesting systems are comprised of three components: catchment area, collection device, and conveyance system.
Rooftop catchment is the most primitive and basic form of this technique. Simple vessels are used to collect rainwater at the roof’s edge. This basic approach has many variations. Rain water can be collected in gutters that drain to vessel for collection through specially constructed down-pipes. Alternatively, rain water can be diverted from gutters into containers. This can cause particulates to settle down before conveyance to the storage container for domestic utilization.