To get water to your faucet, it needs to be pushed through the pipes. We can just do that with pumps.
But when everyone takes a shower around the same time, we need *a lot* of pumps. Pumps that aren’t doing anything for the rest of the day when people aren’t all showering anymore.
So instead, we just put a bunch of water in a really tall thing. That way we can just use the sheer weight of all that water to push it through the pipes. We’ll still need pumps, just not so many. And when people are done showering, the pumps have free time to refill the tower.
Latest Answers