Joburg Water on Tuesday said that Rand Water, which is the main bulk water supplier, was planning a major shutdown that will affect all its reservoirs and towers in terms of water supply for 54 hours from next Monday, 24 June.
Nico de Jager, MMC for environment and infrastructure services, said the shutdown would be on the B11 pipeline to install a 2 500 mm Butterfly valve from Lethabo to Vereeniging pumping station.
De Jager said this would result in limited water supply to all Rand Water customers.
"Please note that this does not necessarily mean that there will be no water during the 54 hours shutdown period, however, due to the extremely long hours, some of the areas may experience a shortage of water or low pressure," De Jager said.
"Johannesburg Water appeals to all residents of the City of Johannesburg to use water sparingly during the shutdown in order to avoid a complete no-water situation and reminds all that that level one water restrictions are still in place."
The shutdown will also affect a number of municipalities across the Gauteng province.