A Fun Way to Harness the Energy of Children to Deliver Clean Water

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In the discussion of my recent post about bottled water I mentioned that sales of bottled water at Manchester University support water pumps in Africa. Specifically, Playpump, a wonderful invention from South Africa.

As children spin on a roundabout, clean water is pumped from underground into storage tanks. The pumps cost about US$9,500 to install. They are much faster and pump at a more reliable rate than hand-driven pumps, and can supply up to 1,400 litres of water an hour.

Better water infrastructure in Africa not only reduces the incidence of the main water-borne illnesses, but also reduces the amount of time that communities spend collecting water from (often dirty) ponds and rivers. Since water collection is often an activity for girls, requiring them to walk many hours when water is inaccessible, it provides more time for them – including more time in school. More information on Playpump can be found here.

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