RAIN WATER HARVESTING

Rainwater harvesting (RWH) is the collection and storage of rain, rather than allowing it to run off. Rainwater harvesting is one of the simplest and oldest methods of self-supply of water for households, and residential and household-scale projects, usually financed by the user. However, larger systems for schools, hospitals, and other facilities can run up costs only able to be financed by owners, organizations, and governmental units.