However, it would take 36 to 72 hours for water supply to be fully restored, said Selangor Infrastructure, Public Amenities, Agriculture Modernisation and Agro-based Industry Permanent Committee chairman Zaidy Abdul Talib.

“Kuala Langat and Hulu Selangor can expect supply to be fully restored by 6am on Saturday.

“For Petaling, Klang, Shah Alam, Gombak and Kuala Lumpur, supply will be restored by 6pm on Sunday,” he told a press conference at the SSP3 treatment plant here today.

He said that in the unexpected incident yesterday, the failure of the surge vessel system to function properly had caused five 1.1-metre diameter pipes to be damaged, with two of them bursting badly.

Four workers there were injured in the incident.

“Rectification work on the system is being expedited to restore supply as quickly as possible to the 563,622 account holders in the six affected areas,” Zaidy said.

Water restoration delayed after surge vessel bursts at treatment plant