With increasing water interruptions in a number of municipalities in South Africa, the risk of being infected of water-borne diseases is increasing. While the water in our pipes is safe to drink. There are situations where diseases can creep into the system, making it temporarily unsafe for drinking purposes, says Professor Craig Sheridan, director of Wits:H2O in the School of Geography, Archaeology and Environmental Studies at Wits University. Realising that, unlike in rural areas, city-dwellers are actually quite uninformed about how to safely treat water, as they have been relying on the provision of clean safe water from municipalities for decades, Sheridan and the Wits H2O team has decided to create a number of videos on how to safely treat water to prevent diseases such as cholera from spreading.