A statement from Syarikat Bekalan Air Selangor Sdn Bhd (Syabas) said the water supply disruption was due to maintenance and improvement work at the North Hummock water treatment plant.
It was part of scheduled maintenance in order to maintain water quality.
The affected areas are Jalan Meru Industrial Estate, Taman Meru Utama, Taman Mesra Meru, Pekan Meru, Pekan Meru 2, Taman Bayu Meru and Taman Daya Maju.
“Every effort will be made to complete the work as soon as possible,” the statement said.