The Minister for the Environment will travel to Ballymore Eustace tomorrow to meet officials and check progress on the water supply problem.

1.5 million people in Dublin, Kildare and Wicklow are affected by the nightly water cut offs, which will continue until Thursday.

The problem with the supply from this treatment plant has been identified and engineers and working to rectify it.

Minister Phil Hogan says it's important the issue does not recur: