“…the body of the earth [h]as its ocean, which also rises and falls every six hours with the breathing of the worlds.”
Here is an intricate drawing that planned to move water with Archimedes screws and water wheels.
You can see a larger version of this drawing by clicking on the photo, Codex Atlanticus Fol. 386R.
If you’d like to learn more about this enigmatic man, the Victoria and Albert Museum has articles that delve into his art, work, and life, along with a bibliography of books that will delight you.