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PlayPump® Water
Systems PlayPump® systems are water pumps that double as playground equipment. As children spin on the roundabout, they are pumping clean water into a 660-gallon storage tank. A simple tap then makes it easy for the community to draw the water. One pump can generate up to 370 gallons of water per hour from a depth of up to 330 feet. Excess water is diverted from the water tank back into the borehole. Four sides of the storage tank are used for billboards - two sides for educational and health messages and two sides for consumer advertising (the revenue from which pays for future pump maintenance.)  Biosand Water Filters The biosand filter can be constructed from readily available, low-cost materials such as cement, sand, and gravel at a cost that is affordable even in developing countries. It is designed for intermittent use as a water filter by small numbers of people. In some cases, subsidized biosand filters are given to persons in developing communities who have demonstrated that they are employing lessons of hygiene and sanitation from training they have received. Since it is not critical to eliminate pathogens, biosand filters reduce bacteria populations in drinking water to safe levels that are tolerable for people in developing countries. Eco-Sanitation Toilets Eco-sanitation/compost toilets are comprised of a raised platform above two chambers, one full and composting, alternating with a second chamber. Organic material is regularly added to the chambers to add carbon for composting, to oxygenate the composting process and neutralise odours. It takes roughly a year for pathogen free compost to be produced which is then used as fertilizer for agricultural projects. A pipe takes urine into a separate chamber where it may then be used to make pellets which aid and nourish soils for crop growth.
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