Global population growth is urban growth and, therefore, most of the water-related challenges and solutions reside in cities. Unless water management and water governance processes are significantly improved within a decade or so, cities are likely to face serious and prolonged water insecurity, urban floods and/or heat stress, that may result in social instability and, ultimately, in massive migration. Aging water infrastructure, one of the most expensive infrastructures in cities, are a relevant challenge in order to address amongst other things Sustainable Development Goal (SDG) 6: clean water and sanitation, SDG 11: sustainable cities and communities and SDG 13: climate action.