Residents in Northern Ireland have been asked to not use garden hoses or sprinklers in a bid to conserve water as a heatwave continues across the UK.
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The call came as temperatures on Friday hit 32.5C in Porthmadog in northwest Wales with highs of 30C to 31C expected on Saturday.
The average temperature for this time of year is 17C in the north and 21C in the south, the Met Office said.
"We have maximised our water production and need customers' help to reduce demand," NI Water chief executive Sara Venning said.
"We are asking customers to take heed of the hosepipe ban and stop non-essential water use - using hoses and sprinklers is causing demand to exceed the capacity to supply."
The recent hot spell has put a strain on utility companies, which have been pumping millions of litres of water into their systems.
Meanwhile, gritters - a sight more usually associated with winter - have been deployed in some areas, spreading crushed rock dust on to melting roads to create a non-stick layer between the surface and vehicles.
Australian Associated Press