Hi, there's room for more detail on this subject, but fyi you can get started on these earlier posts

• How did fountains function before the invention of electricity?

• Not sure if this is more "Ask Historians" or "Ask Science" but, essentially, how did pre-industrial civilizations move water uphill?

.. and a couple on Ancient Rome

• What does it really mean when we hear about ancient civilizations that had running water?

• Ancient Piping - How and Where?