Reservoir levels are being monitored very carefully because of the hot weather.
The Water and Sewerage Authority says levels are dropping because of the continuing spell of dry weather.
It says it will be necessary to supplement the supply to the Douglas Water Treatment Works from the West Baldwin Reservoir by pumping water from the Sulby Reservoir via the Beinn y Phott pipeline.
The authority says there is no need to issue a hosepipe ban at this time however people have been asked to use water wisely and limit the use of garden sprinklers wherever possible.
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