Solar thermal technology is appropriate way for water purification, as it is renewable, modular, scalable, low-cost, and self-buildable with local materials and skills. It lends itself to conversion into a solar water purifier through evaporation and removal of bacteria. After the first planning phase with the social partners involved, a pilot plant project for water purification has been designed. The subsequent implementation has been developed in collaboration with local craftsmen and well management experts according to the training-on-the-job methodology. The knowledge needed to manage and disseminate the technology has been transmitted through a workshop for artisans and well managers from Dagga Dialaw and neighbouring villages. Monitoring and evaluation activities will follow the whole development of the project and will also include a phase of water analysis of the wells to assess the functioning of the technology.