A poster illustrates the business venture between UMAWA and its customers in a pit-latrine-emptying venture in Kigamboni district, Dar es Salaam, Tanzania. Photo: WaterAid/Christina Chacha.
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A poster illustrates the business venture between UMAWA and its customers in a pit-latrine-emptying venture in Kigamboni district, Dar es Salaam, Tanzania. Photo: WaterAid/Christina Chacha.
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