For next world, assuming water tables go back to normal, what if there were insanely high quality salt water nodes that are only in Very Deep Ocean.
Let's say you could find a q400 Salt Water node as the absolute highest. Yes, it's insane, but the ocean is large and vdo damage may prevent it from being found. It would likely lead to the highest quality water and high quality stills would be required. Plus, idk... Epic ocean battles that lead to the death of many via drowning since it's a thing.
idk
*shrugs*