Cape Town could be the first major city in the world to run out of water

Cape Town dam levels continue to remain critical. [Photo: Courtesy]

Residents of Cape Town are in dilemma as they struggle to avert a water crisis that has hit the South African town.

In the grip of a three-year-long drought, the city is predicted to reach "Day Zero" - when its water-supplying dams sink below 13.5 percent of combined capacity today, April 21.