Gravity takes care of the pressures. If you put a long pipe vertically in the water, with its bottom open and its top sticking up a couple meters on top, and th

Gravity takes care of the pressures. If you put a long pipe vertically in the water, with its bottom open and its top sticking up a couple meters on top, and then put some water into the top of it, what happens to the water column inside? You do not need to get the water at the surface to 10, or 100, or 1000 atm. You just need a long pipe that goes all the way to the bottom. Likewise for transporting water upward.