Residents along Devon St and York St in Picton will not have water from 10am to 3pm on Thursday.
The Marlborough District Council is advising people to store water before the supply is shut off so the new water main in Broadway St can be connected to the system.
The shutoff could be postponed if the weather on Thursday is not suitable. For more information, phone Mark Power at the council on 03 520 7400.
- The Marlborough Express