Residents in Bundoran and the surrounding area are being advised that their water supply will be impacted tomorrow.
Essential works are being undertaken by Irish Water on a major water main in the town.
Repair crews need to replace a failed meter and the installation will be complete at 6pm tomorrow evening.
Some customers may not receive a full water supply for a further two to three hours after the water is switched back on and water returns to the network.
In a statement, Irish Water said it understands the inconvenience when an outage occurs and thanks customers for their patience while we carry out the installation and restore normal supply to impacted customers.