More than 5 million people clean their drinking water with the SODIS method. On the other hand there are still almost 1 billion people who do not have access to safe drinking water. Therefore we have intensified our activities in recent years. Especially in Africa we increased the number of projects considerably. Presently we conduct SODIS projects in 15 countries in Africa, Asia and Latin America.

One of the most important criteria for the selection of the countries in which we work is the number of people lacking safe drinking water. Equally important is that we collaborate with an experienced and reliable partner organisation. This is crucial for the success of a project as the partner organisation is responsible for the implementation in the field.

To reach high cost-effectiveness in our projects we incorporate the SODIS trainings when ever possible in already existing activities of our partner organisations. Thereby we can use already existing structures and benefit from well-established teams.

To explain to people the SODIS method we visit them at home, conduct courses in schools, health centres, and other institutions. Depending on the local structures, geographical circumstances or the political situation we select the most efficient training method. Often we use several different strategies at the same time to reach a maximum of people.

To achieve a long-term application of the SODIS method in the population we work over several years in the project areas and use specific adult education methods. The SODIS method is always trained in combination with other measures to improve hygiene such as hand washing with soap.

Through our projects countless people have now access to safe drinking water. At the same time we sensitize governments for the SODIS method to achieve a national dissemination. Also, we closely collaborate with local and international NGOs, governmental development organisations and the UN Organisations to spread faster the knowledge about the SODIS method in the population.

© SODIS 2014
Last update: 29.01.2013
An initiative of

Swiss Federal Institute of
Aquatic Science and Technology