WaterSmart hand pumps to bring a reliable water service to rural Africa

Oxford University’s Smart Hand Pumps project was showcased by the Research Councils UK (RCUK) at their first Research, Innovate, Grow conference on 2 July. The RCUK event in London highlighted some of the innovative research funded by the seven Research Councils through interactive exhibits, with the researchers involved talking about their work with attendees.

Worldwide 780 million people live without basic and reliable water supplies, with parts of rural Africa facing particular challenges achieving water security. Groundwater from hand pumps is a primary water supply for many communities — but up to one third of these pumps are out of action at any one time and can take weeks to be repaired.

Oxford University reports that a team of researchers at Oxford University has created a device that generates data on hand pump usage and transmits this information over the mobile phone network. The smart hand pump, being trialed in rural Kenya, alerts the maintenance team if the hand pump is not functioning. The results from Kenya showed a reduction in pump downtime from thirty-seven days to two. In addition, the team is developing an innovative transparent finance model to leverage the funds needed to maintain the communities’ hand pumps.

In their latest research paper, published in the journal World Development, they show how after the free trialed maintenance service, villagers are more convinced of the value of paying for a reliable water service. The paper says this could help solve “an enduring puzzle” in achieving universal and reliable water service delivery, particularly in the case of community managed hand pumps as previously many households were paying nothing toward the service.

In the 12-month trial in Kyuso in 2013, the researchers put mobile-enabled transmitters in 66 hand pumps providing water to up to 20,000 villagers. After the trial, 630 households consulted in this study were asked about their previous payment levels for hand pump maintenance and their willingness to pay on a monthly basis for the new service. At the forty-six hand pumps that broke and were repaired in 2013, there was a threefold increase in the number of communities willing to pre-pay regularly for a continued maintenance service. The percentage willing to pay for this service went up from 29 percent to 91 percent.

The Oxford team have now helped set up a small local business and introduced a mobile payment system whereby the water user committee at each pump responsible for the payment of the maintenance service gathers the money from local households to make the monthly payment through a mobile money platform. Pre-payment charges are set on the basis of the usage data. The researchers continue to assess whether people are prepared to pay for a fairer and more flexible payment model contingent upon reliable service delivery. The Government of Kenya’s Water Services Regulatory Board (WASREB) has already acknowledged the importance of such performance data “enabling WASREB to ensure that satisfactory performance levels are achieved and maintained, and enhancing transparency and accountability within the rural sector.”

The pilot project has since been rolled out to a larger area in Kwale County south of Mombasa. An additional 300 pumps have been fitted with transmitters and another local hand pump repair business was set up. The researchers will continue to work in this area for the next four years.

— Read more in Johanna Koehler et al., “Pump-priming payments for sustainable water services in rural Africa,” World Development 74 (October 2015): 397-411 (doi:10.1016/j.worlddev.2015.05.020)