It's still not safe to go back in the water at swimming spots across the capital.
A swimming ban for beaches and swimming areas have been shut down since partially-treated sewage was allowed to overflow from the Ringsend water treatment plant in the early hours of yesterday morning.
Heavy rain overnight overwhelmed the treatment plant's capacity, and with more rain on the way this weekend there are fears of another discharge.
Swimming's banned at Seapoint, Sandycove, the Forty Foot, Killiney and Whiterock in south Dublin.
Meanwhile the city council has also warned people to stay out of the water at Dollymount, Merrion Strand, and Sandymount.
The southside ban has been extended until at least Monday by Dún Laoghaire-Rathdown county council, while Dublin City Council hasn't said when the ban might be lifted in its area.
Irish Water has faced heavy criticism over the situation.
"It underlines the need to upgrade the sewage system in Dublin, Green Party MEP Ciarán Cuffe said.
"A lot of those works are underway, but I hope they can be speeded up so that incidents like this are less likely to occur."
Meanwhile Fine Gael Councillor Barry Ward says Irish Water needs to be able to do better when heavy rain is forecast.
"We're not strangers to heavy rainfall, yet it seems that Irish Water has made no preparations to allow for that and to ensure that there isn't another sewage outflow into Dublin Bay," he said.
"Once again bathing water has been compromised, and people living in Dublin; Blackrock, Dún Laoghaire, Sandycove, can't go swimming in a natural amenity that's on their doorstep."
