SA Water says South Australia's lockdown coupled with recent warmer weather resulted in the state's water consumption reaching its highest daily figures since March last Thursday.
Demand for water on the first day of the lockdown, which also saw temperatures in Whyalla reach 39.8 degrees Celsius as other towns across the state hovered in the mid 30s, saw water use rise to 982 million litres - about 30 per cent higher than the daily average of the previous week.
SA Water's senior manager of media and communications Joshua Zugajev said that was likely due to people making the most of being at home by tending to the garden or getting ahead on household chores.
"We typically observe a trend between warmer weather and water consumption, and it seems with the majority of our community staying home to help stop the spread of COVID-19 during the recent lockdown, we may have had more time to water the garden or get through an extra load of laundry," he said.
"Our morning water consumption pattern also shifted during the few days of lockdown, indicating that many people enjoyed a sleep-in and avoided the usual morning rush of showering and preparing breakfast.
"Looking at our Morgan to Whyalla Pipeline, which supplies Morgan and several towns through to Port Pirie, Port Augusta and Whyalla, water usage spiked to 155 million litres on Thursday - the highest daily amount for the month so far."
He said in comparison to Adelaide, which usually comprises two-thirds of the state's overall water consumption, water use increased by more than 35 per cent to around 630 million litres per day during the three-day lockdown when compared to the five-year daily average for November.
After the first two months of the state's initial lockdown earlier this year, SA Water data revealed how showers and toilet flushes peaked two hours later than normal in the morning.
Mr Zugajev said a similar pattern formed during last week's lockdown, with the utility's Christies Beach Wastewater Treatment Plant experiencing a sharp rise in flow.
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