18 days ago - Shurenai - Direct link
Well, The only thing wrong with your analysis is that you think you can still craft jars... You can't. Empty Jars are just plain gone. You can't just make a stack of 500 jars and fill it at a source and never think about water again.

You have to scavenge for water, drink it from the source directly (Stare at it with an empty hand for a second and the prompt will come up), get it from food items that give water (soups for example), and eventually by getting a Dew Collector which will passively make water over time.