Leak concerns

The commission also plans to make repairs to stop leaks in the distribution network of one of the main water supply systems.

"Losses from leaks are greater than the total resources supplied through this system," Conagua's website said.

The city's government said it would provide 500 trucks with water tanks and purified water containers in areas worst hit by the cuts.

The government said it hopes to restore 50 per cent of the service by late on Saturday and return to a full service by Wednesday.