IRISH Water aim to restore supply to affected customers in four areas of Donegal by this evening.
Repair crews are on sight working on the outages.
Irish Water estimated that supply will return by 6pm on a disruption at Carndonagh and surrounding areas.
A burst affecting Drumaweer, Greencastle and surrounding areas is to be fixed for 5pm.
Areas around Meenreagh, Tieveclogher and surrounding areas outside Ballybofey expect to have their supply restored by 2pm.
Customers in Ballyshannon currently experience loss or disruption to their supply will have water retired by 3pm.
In all instances, Irish Water advise that supply may take 2-3 hours to fully return to all affected properties.