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It's fair to say that the Rio Olympic Games has had a few problems when it comes to water - from the eggy-smelling, green diving pool and missing pontoon to the flooding of the athletes' accommodation.
The latest plumbing problem involves the showers in the athlete's rooms, which have to be turned on in a super special way. Cue John Mann and Alex Bowen, US water polo players, to demonstrate.
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By turning the tap on - obviously.
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