“How can we control water in a reservoir using valves?”
Water in reservoirs can be difficult to control. If there is too much rain, it can easily overflow. But how can we control this using our engineering mindsets? Well, what if we were to modify the height of the reservoir using a floating drum? And what if we were to place this floating drum in between two mounds, and use a valve to let water in to raise in and another one to lower it? This is the main idea behind Drum Gates and are applied to Floodgates all over the world.