A water main has burst under a footpath on Army Road in Pakenham at 9am Thursday 11 November.
Water has caused minor flooding at the intersection of Army Road and Princes Highway.
South East water crews are on site and have switched the water off so that repair works can commence.
20 customers are currently without water, with an estimated return time of 2pm.
South East Water has set up a tap on a hydrant for people to fill containers with water at empty bottles at 6 Army Road.