How does running water reach the higher floors of skyscrapers?

Question

I don’t really know how plumbing works but there’s no way it just makes it all the way up in one shot without gravity interfering, right?

In: Engineering

Answer 1

Also, for people in NYC living in tall skyscrapers, how do elevators that go to their floor work? Can just anybody from the lobby hit, say, floor 45 and get to that floor? What if it’s an elevator that opens directly into the unit? How do locks and keys work? Where’s the security?