Education and Socialization of Simple Biosand Filter Technology as an Alternative Source of Clean Water in Kradenan Village, Salatiga City

The lack of public understanding of cheap and effective clean water treatment is still a problem in a number of areas, including in Kradenan Hamlet, Tingkir Lor Village, Salatiga City, where most people still depend on groundwater sources and potentially contaminated surfaces because they have not undergone an optimal purification or filtration process. This service activity aims to provide education, socialization, and training in making water filter technology in the form of Biosand Filter made of simple materials as an alternative solution to provide clean water for the community. The activity was carried out through observation, interviews, demonstrations, and direct practice of making biosand filters with the community. In its implementation, the community is not only given an understanding of the importance of sanitation and the dangers of polluted water consumption, but also guided to make water filters independently. The results of the activity show an increase in public understanding of appropriate technology, as well as a growing awareness of the importance of clean water quality. The continued impact of this activity is expected to encourage the community to implement a simple water filtration system in the form of a Biosand Filter as a long-term solution that can be used sustainably in their living environment.