RonPaulFTW wrote:Feone wrote:Water purity could also be taken literally.
Using some kind of refinery style process to take regularly found water and purify it. Perhaps well water could start out the purest, followed by river, followed by lake, followed by sea.
The more purification steps the purer the water.
Well if the game wants to be somewhat accurate historically - boiling the water is about the only thing I can think of as a step in the purification process.
Well, we do have alchemy in the game. Alchemists made all sorts of grand claims about things they could do with various substances. I'm sure some of it relates to water.
I suppose holy water and other faith related blessings could also be relevant.