Almost 35,000 homes in north Dublin will be without water this weekend because of works connected with the completion of the Dublin Port Tunnel.
Most of the northeast of the city will have its supply shut down with a "total loss of water" at some period between 8pm this evening and 6pm on Sunday.
The areas directly affected are: Fairview, Clontarf, Raheny, Killester, Kilbarrack, Sutton Park, Bayside Park, Baldoyle village, Baldoyle Industrial Estate and Menolly Homes at The Coast in Baldoyle.
Houses in surrounding areas will also experience some disruption to their water supply.
Three emergency water tankers will be located at St Brigid's Church on the Howth Road, behind the UCI cinema in Coolock and at the junction of Vernon Avenue and the Clontarf Road.
A spokeswoman for Dublin City Council told ireland.comthis afternoon that a number of mobile water tankers would be available to get water to people who could not get to the stationery tankers.
She was unable to say how many mobile tankers would be available. The following numbers should be used to request assistance from a mobile tanker: 01 2224220 and 01 2224221 (Office Hours) and 01-6796186 (After Hours).
The weekend was chosen in order to minimise disruption, according to the council's divisional engineer for water services, Mr Brian McKeown.
"Demand is lower on Saturday and Sunday because the non-domestic sector is largely not operating. If we shut it down during the week, schools will have to shut down and parents might have to take time off work," he said.
However, businesses that trade over the weekend such as hairdressers and sports facilities will be affected. There are also several nursing homes in the area which will be left without water.
Most domestic water tanks should hold enough water for 24 hours, or slightly longer "if people nurse it", according to Mr McKeown. He advised householders to avoid unnecessary water usage.
Local Independent councillor Finian McGrath said the city manager and the port tunnel management team were showing complete disdain for the people of north Dublin.