Tutorial+Three

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1. Ease of use- The treadle pump needs no high/technical skills to operate. =====

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2. Productive- Well designed products are ones that actually create value because of the affoardances of the design. The treadle pump generates $1.4billion in net farmer income. =====

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3. Accessibility- The treadle pump can be used by both the younger and older population. =====

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4. Materials- The materials are readily available. Bamboo the core material is in abudance in Africa. =====

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 5. Maintainance- Requires little to no maintainance. =====