Uisce Eireann says repairs have now been completed on a major leak that severely impacted businesses in the city centre.
It affected premises on Dock Road, Eyre Square, Middle Street, Victoria Place, Station Road, Lough Atalia and Merchant's Road.
The leak was near the Docks, and crews worked overnight and into this afternoon to fix the problem.
Uisce Eireann says normal levels of water should return to all affected areas over the course of the evening.
