
The affected areas are in Seberang Perai Utara, Tengah and Selatan.
In a statement, PBAPP said it will be shutting down part of the Sungai Dua water treatment plant to facilitate valve replacement works.
Of the 197,851 consumers who will be affected, it said, 173,236 will have their water supply cut off and 24,615 will experience low water pressure.
PBAPP said it will maximise water production at the Air Itam and other water treatment plants on the island to minimise the impact of the supply disruption.
Water storage in reservoirs will also be maximised, it said.
It said it is working with the volunteer fire brigade coordinated by the state government to mobilise water supply assistance through tankers after 12 hours of water supply disruption.
“Please store sufficient water for usage during the 48-hour water interruption,” it said.
Consumers are advised to contact PBAPP at 04-255 8255 for any enquiries.