Residents of the World Cup host city of Samara are being urged to take showers in pairs because the influx of fans is putting strain on water supplies.
The Samara Communal Systems utility company says the combination of a heat wave and "thousands of guests" have meant its providing 10 per cent more cold water than normal.
That's causing water pressure to drop in some neighbourhoods, the company adds.
The company advises locals to "save water - take showers in pairs," adding a smiley face to the message, reports ABC News.
Samara is due to host England's quarterfinal game against Sweden on Saturday.
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