Roundabout Outdoor developed the PlayPump water pumping system this  is a childrens 'Merry-go-Round' that rural children play ,spin and have fun on.As the children play their energy pumps fresh ,clean drinking water to the surface from a pre-tested underground borehole.Water is stored for future use in an overhead sealed tank. Four advertising boards fixed around this overhead tank attract funds,and promote public messages such as HIVAIDS awareness advertisments,the funds rieceved are used to maintain the equipment, thus making the whole system sustainable.