Many customers have been without running water since Monday , but some say they have n't had supplies for 10 days . NEW : The water supply to Belfast 's top hospital burst . NEW : Northern Ireland Water 's response to the crisis is ` ` unacceptable , '' chairman says . Tens of thousands have been without water since Monday . Parts of the water system may not be repaired until next week .
NEW : The water supply to Belfast 's top hospital burst . NEW : Northern Ireland Water 's response to the crisis is ` ` unacceptable , '' chairman says . Tens of thousands have been without water since Monday . Parts of the water system may not be repaired until next week .