Water use peaks during hot weather, with Water Corporation expecting water use to be more than 1.1 billion litres per day in *Perth during the heatwave.

The record for the highest daily water use was on 31 January 1991 – when Perth used 1.350 billion litres of water. That’s the equivalent of 600 Olympic swimming pools of water in one day.

Water Corporation fully expects and plans for the temporary spikes in water use to ensure the water supply scheme can meet demand in very hot weather.  

While the heatwave is temporary it’s a blunt reminder of the trend towards hotter and drier conditions in Perth, and the need to continue to adapt our water use for the longer-term.

According to the Bureau of Meteorology, 2015 was Perth’s equal warmest year in 117 years and most of the metropolitan area experienced below average rainfall.

Since 1 July 2015 our water use has been nearly 5 billion litres above target.

40 per cent of our household drinking water is used outside the home.

If you do have to drench your garden to keep it alive during the heatwave it could be time to consider something more practical and waterwise.

There are a few other things you can do to save water during the heatwave:

A pool cover can save up to 55 litres of water a day in summer - cover your pool after every swim.

Keep a container of water in the fridge to avoid having to run the tap for a cool drink.

Repurpose water – this can be done in a variety of ways – pet drinking water and even cooled-down cooking water can be used to water grass and plants. 

Please quote Water Corporation spokesperson Clare Lugar.

*Note: This is water used by the Integrated Water Supply Scheme, which supplies water to Perth, Mandurah, the Goldfields and Agricultural Region and parts of the South West. 


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