Which places in the world, and if there is product-specific and Africa sold some time to act on the ground (including feedback) do you have?

Our activities in the area of Mozambique began a year ago with an initial prototype, from which we learned about the special problems of such application. Then we made three prototype facilities in various facilities, about 7 months ago in Ghana. We provided the finished units in November to these villages. The results are simply stunning. Before installing the facilities were severely water-related diseases (diarrhea , dysentery etc.), diseases which disappeared after the installation of the pumps.