The PlayPump COST: $14,000 World Bank Development Marketplace Award Winner, 2000 Description The PlayPump utilizes a modular play wheel mechanism to simultaneously increase access to clean water, provide playground equipment for children, and improve hygiene and sanitation by social and public health messaging. Main Features Cost includes equipment, installation, water quality testing, 10 years of maintenance and community liaison! Offers a large, 2,500 litre storage tank Stores water 7 metres above ground for distribution Easy to install and to use Low operation and maintenance costs Adapts to below-ground assembly of any deep-well pump Recycles unused water Billboards generate revenue for pump maintenance Reserves 2 of its 4 billboards for educational messaging How does the PlayPump work? Children spin on the merry-go-round A valve pump converts rotational to vertical movement and draws clean water up from the borehole Into a 2,500 litre tank Standing 7 metres above ground A simple tap allows for drawing of water Excess water is diverted from the storage tank back down the borehole The water tank provides a rare opportunity to advertise in outlaying communities, with all four sides leased as billboards Technical Data Well Type Borehole (≥ 100 mm ⌀) Space required Circular, minimum 7 m (⌀) Construction Modular play wheel mechanism Play wheel (⌀) 3,340 mm Cylinder Direct action reciprocating cylinder of any deep-well hand pump Capacity 15 – 20 children Discharge at 10 m head at 15 m head at 20 m head at 30 m head With a 75 watt input, approximately: 1.6 m3/hour 1.3 m3/hour 1.1 m3/hour 0.9 m3/hour Pumping Lift >100 metres Operating depth 25 – 100 metres Ideal speed 16 – 20 rotations per minute Output 1,400 litres per hour , at 16 rotations per minute Operating mechanism Manually operated play wheel Connecting rods Galvanized steel pipe, 30° mitre Weight 900 kilograms Riser pipes User-defined Potential Application School water supply, community water supply in a rural area Population served Approximately 300 people (30 – 50 households) References 1. Span Pumps Pvt Ltd. Hand Pumps. Span Pumps Private Limited: . [Online] Span Pumps Pvt Ltd., 2008. [Cited: 04 29, 2010.] http://www.spanpumpsindia.com/hand-pumps.html. 2. Water for People. How Playpumps Works. Water for People: The Current of Change. [Online] Water for People. [Cited: 04 29, 2010.] http://www.waterforpeople.org/extras/playpumps/how-playpumps-works.html. 3. The PlayPump Service Project. Facts About the PlayPump. Welcome to the PlayPump Service Project: Together We Can Make a Difference. [Online] The PlayPump Service Project. [Cited: 04 29, 2010.] http://playpumpa2p3.org/playpumpfacts.aspx .  Please note: Some technical specifications may have been modified for this exercise