Explore source water, subtle gradients, covered channels, stone weathering, settling tanks, distribution, baths, fountains, and sewers as one urban system.
A Roman aqueduct drew water from a source higher than the city and carried it down on a gentle, carefully held slope. The hard part was never distance — it was keeping the water surface at the right height and the flow at the right speed. Too steep and the channel wears away; too shallow and the water stalls, dropping sand and lime along the way.
Take in the whole run from spring to city, and see where the difference in elevation is spent.
What moves the water is not a pump. It is the terrain and gravity.
The starting point that takes water from a mountain-side source toward the city. Not just the volume but the difference in elevation sets the whole design.