Lifting and Extraction

Featured Articles
December 26, 2019 Policy matters this week
The Mandovi river disputed between Karnataka and Goa (Source: IWP Flickr Photos)
December 2, 2019 Water stewardship is an approach predicated on the concept that water is a shared resource and so water risks are also shared risks that everyone in a catchment will face
Picture credit: Romit Sen
November 4, 2019 Despite being the lifeline of India’s water supplies, groundwater is overlooked by policy makers and users alike.
An irrigation well at Randullabad, Maharashtra. Image source: India Water Portal on Flickr. Image used for representational purposes only.
October 25, 2019 Groundwater use has doubled in Pune. Comprehensive mapping of groundwater resources and better management and governance is the need of the hour.
Groundwater, an exploited resource (Image Source: India Water Portal)
September 30, 2019 The recently concluded 4 day conference in Bangalore looked at the current state of global water resource challenges & future pathways to achieve the SDGs, while ensuring equity in access to all.
Charles Vorosmarty, Chair, COMPASS Initiative, Water Future at the opening plenary on advanced water system assessments to address water security challenges of the 21st century.
August 7, 2019 A million recharge wells for Bangalore
Ramakrishna Bovi is a traditional well-digger in Bengaluru. Image credit: Citizen Matters
Dipping water table in Kolar, Karnataka, leaves a Persian wheel forlorn and frustrated
Videoblogging from S.Vishwanath of the Rainwater Club Posted on 14 May, 2008 09:45 AM

As ground water levels decline in India, Persian Wheels cannot reach the water to draw them out from open wells. One such Persian wheel stands forlorn and frustrated as the water table has dipped in Kolar, Karnataka India. This wheel has worked for the last 80 years and 2007 was the first time that the water table fell and the wheel could not work for the day.

SAFEWAT: Water purification system by Population Services International
SAFEWAT: Water purification system by Population Services International Posted on 18 Feb, 2008 11:15 AM

Most drinking water projects are designed for supply of treated water through pipes to communities ; this requires investment on infrastructure such as pumps, overhead tanks, supply pipes, water purification equipment and after the project, maintenance staff and funds; while all this calls for planning, funding and time to execute, yet we cannot be certain that the water delivered remains uncon

Persian wheel : The water lifting device in Kolar, Karnataka
S.Vishwanath and Amitangshu Acharya document their visit to one of the last extant Persian wheels in the Kolar District of Karnataka Posted on 22 Jan, 2008 11:26 PM

img_0052.JPG What exactly is a Persian wheel? Also known as Rahat (in Urdu), it's a simple water lifting device, where a number of small pots are attached to a long chain. Two gear wheels make up the system and as the first one is revolved, the pots each dip and swallow water from the well and soon after pours itself out to a metallic shaft which in turns empties into an intricate network of troughs that distributes water adequately through the cropped area. It is believed that the technology originated in Egypt and as world shrunk through extensive trading, it spread to India and China.

Foot powered centrifugal pumps
Foot powered centrifugal pumps
Posted on 27 Jun, 2007 03:45 AM

Two instances of foot-powered water pumps that we have come across. Have readers come across others and do they feel that these are a useful invention?

Read about Treadle Pump Programme http://www.ide-india.org/ide/treadlepump.shtml

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