Rain Water Harvesting Practices in many Areas

History

Earlier

Around the third century BC, the farming communities in Balochistan (now located in Pakistan, Afghanistan and Iran), and Kutch, India, used rainwater harvesting for agriculture and many uses also.^[13] In ancient Tamil Nadu , rainwater harvesting was done by Chola kings.^[14] Rainwater from the Brihadeeswarar temple (located in Balaganpathy Nagar,Thanjavur, India) was collected in Shivaganga tank.^[15] During the later Chola period, the Vīrānam tank was built (1011 to 1037 CE) in Cuddalore district of Tamil Nadu to store water for drinking and irrigation purposes. Vīrānam is a 16 km (9.9 mi) long tank with a storage capacity of 1,465,000,000 cubic feet (41,500,000 m³).

Rainwater harvesting was done in the Indian states of Madhya Pradesh, Maharashtra, and Chhattisgarh^{[citation needed]} in the olden days^[when?]. Ratanpur, in the state of Chhattisgarh, had around 150 ponds. Most of the tanks or ponds were utilized in agriculture works.^{[citation needed]}

Rwh METHODS..!!

Methods of Rainwater Harvesting – Broadly there are two ways of harvesting rainwater

1. Surface runoff harvesting
2. Roof top rainwater harvesting

Rainwater harvesting is the collection and storage of rainwater for reuse on-site, rather than allowing it to run off. These stored waters are used for various purposes such as gardening, irrigation etc. Various methods of rainwater harvesting are described in this section.

11 Clever ways to save water

The majority of water usage in the home is done indoors, accounting for approximately 93% of the overall water usage at home. This includes toilets, personal washing, kitchen, clothes washing. 

Have a look here at Every Last Drop, an interactive fun video about daily water use. It was made by the lovely people at Nice and Serious.

 We can all help reduce waste by making small behavioural changes and by choosing more water efficient products.

What is Rain Water Harvesting?

Rainwater harvesting is the accumulation and deposition of rainwater for reuse on-site, rather than allowing it to run off. Rainwater can be collected from rivers or roofs, and in many places the water collected is redirected to a deep pit (well, shaft, or borehole), a reservoir with percolation, or collected from dew or fog with nets or other tools. Its uses include water for gardens, livestock, irrigation, domestic use with proper treatment, and indoor heating for houses etc. The harvested water can also be used as drinking water, longer-term storage and for other purposes such as groundwater recharge.