Tangential, but I remember a tour guide at the Colosseum saying they could flood the floor of the arena for “naval” shows in less time than it would take you t

Tangential, but I remember a tour guide at the Colosseum saying they could flood the floor of the arena for “naval” shows in less time than it would take you to flush the toilet twice in many apartments in the city today. Unsure how accurate that was, but impressive description.