At least 40,000 people in Northern Ireland are having to cope without running water.
Some homes have been cut off since before Christmas, after pipes froze in the cold weather and then burst.
Almost 80 towns and villages across Northern Ireland have been affected. Emergency centres have been set up to give out bottled water.
But the main water company said it could be several days before things are back to normal.
Some people haven't had runnning water for nine days, and are very angry about the situation.
Local councils and sports centres are offering people free showers.
In Lurgan in County Armagh sewage swamped several houses on Boxing Day because the water pipes overflowed.