Guest: Craig Sheridan, The director of the Centre in Water Research and Development at Wits

South Africa is a water scarce country. In other words it has an excess of demand over available supply. It also has low water security – the ability to ensure sustainable access to good quality water. The country’s economic hub and biggest population centre, Gauteng province, has suffered sequential water crises that have been a blend of both factors, combined with some others, such as a lack of maintenance.