People in North Sligo in particular are urged to conserve water in this hot spell.
The North Sligo Water Supply remains one of those ‘at risk’ supplies and Irish Water is urging people to continue to conserve water.
A hosepipe ban is in place in the greater Dublin area but Irish Water warns it may extend that ban later this week.
The Lough Mourne supply in Donegal is another at risk supply.
People are also urged to report any leaks.
Jerry Grant of Irish Water has indicated that hosepipe bans and further restrictions will happen further west: