How did the aqueducts take water from lakes to rome?

Question

How did the aqueducts take water from lakes to rome?
I'm doing a report on aqueducts. But I seomehow dont get how the aqueducts take water from one place to another. Please explain!

Answer 1

Simple., it is a matter of gravity. At the source water was diverted from a regular stream or river that flowed from the lake, and then directed into an aqueduct, which was like a little river. As long as the level of the aqueduct never went up hill and didn't decline too steeply, the water would keep flowing downhill, from the lake in the mountains to Rome. In Rome itself sometimes it was put into underground cisterns, of holding tanks, at other times into pipes that fed into fountains, or even into short water courses so that the public could have access to it. It was a good system but it took a lot of maintenance.

Answer 2

the top of the aqueduct the place the water is gathered is larger up than the the castellum(the huge cistern the place it became stored till now being disbursed around the city). Gravity does something.