the playpump in action Oh, this is wonderful. The Playpump uses a children’s playground toy to pump water to a holding tank, dramatically reducing the workload of poor women in South Africa. Advertising on two sides of the tank pays for installation and upkeep, and the other two sides are reserved for public health messages like the one in the picture at right. Via Rivka, who provides lots more detail; go read about it, it will cheer you up no end. diagram showing how the playpump works