Disruption to water supply is continuing in several parts of the country.
Repair work is being carried out in many counties, including Clare, Galway, Laois, Limerick and Sligo, where some households have been without water since Christmas Day.
Overnight water restrictions will remain in place in Dublin for at least another five days.
Meanwhile, a water leak inside Shelbourne Park greyhound stadium in the Ringsend area of Dublin has forced the cancellation of racing this week and possibly next.
Speaking on RTÉ’s News At One, the Chief Executive of the Irish Greyhound Board, Adrian Neilan, said the leak was discovered nine days ago and resulted in significant damage.
He rejected any suggestion that there had been a serious failure of its detection system.
Cork City Council says it has lifted night time restrictions on water supplies.
The council said repairs will continue to be carried out over the coming weeks and has called on property owners to check their premises for any leaks.
Up to 5,000 homes in the Abbeyfeale area in Limerick are still subject to water rationing as efforts continue to repair leaks.
Limerick County Council said it is using computer technology to help them locate and monitor leaks.
It says it hopes to have the Abbeyfeale area supply back to normal in the coming days.
Tankers and standpipes are operating at a number of locations in Clare throughout the day. The county council has said the situation is continuing to improve and is near normal in most parts of the county.
Meanwhile, the Construction Industry Federation says a scheme of replacement of old and damaged pipes in conjunction with a change in consumer behaviour could reduce water wastage by as much as 15%.
The CIF says the establishment of a National Water Authority would help drive the implementation of planned infrastructure improvements.
Local authorities are currently upgrading around 2% of water mains each year but the Construction Industry Federationon (CIF) says this is insufficient and needs to be raised to 5%.
CIF spokesman Martin Whelan said that leakage rates nationally could be reduced from nearly 50% at present to around 15% within five years .
He said that although this would involve extra government investment of €125 million a year it would also save €75 million a year through the reduced leakage.
Professor Nick Gray of TCD's Centre for the Environment says that further weather disruption to the water suppy is inevitable because of the antiquated system here which lags 15 years behind Britain in terms of investment.
The Dublin region has 2,700 kilometres of water mains with nearly half being at least fifty years old with 650 kilometres older than 75 years.
Dublin City Council is currently upgrading 110 kilometres of water mains in the region and has already reduced leakage rates from 42% to 28%.
Northern Ireland Water
Elsewhere, the future of chief executive of Northern Ireland Water Laurence MacKenzie is expected to be decided this week.
The company has been criticised by the Stormont Executive and by the public for its handling of the disruption to supply after the cold spell.
The Northern Ireland Assembly Committee for Regional Development is to hold a special meeting in public session tomorrow and Mr MacKenzie has been invited to attend.
Mr MacKenzie took over as chief executive of Northern Ireland Water during 2009. His financial package is worth around £250,000 a year.
The Northern Ireland Water company is dependent on the state for funding. Its board answers to Regional Development Minister Conor Murphy.
There are now no properties in Northern Ireland without a water supply, according to the company.
The Northern Ireland Water Company says that ten properties in eastern areas and 23 in the west have intermittent supply due to low pressure on high ground.
The company also said there were no further plans for temporary cut offs of supply across Northern Ireland.
