sentences:  Durban was the first South African city to introduce a policy of free basic water in 1998.After Thabo Mbeki became President of South Africa in 1999 and a cholera outbreak occurred in 2000, the African National Congress promised free basic water during a municipal election campaign in December 2000.In July 2001 free basic water became a national policy through a revised tariff structure that included at least 6 "kilolitres" (cubic meters) of free water per month (40 litre per capita per day for a family of five or 25 litre per capita per day for a family of eight).