Where is the most liquid water on earth, and what would have to be done so that humans could drink it?

The most liquid freshwater is found underground. It is groundwater. Earths water is mostly found in oceans and in order to drink it you need to get the salt out of it and clean it through a filter, chlorine, coal and other things

In the ocean is where you can find the largest body of liquid but the one thing that you would have to do is take the salt out in order for humans to be able to drink it.