You need a jar of water and can’t figure out where to find the item? There are few solution to perform this task.
Jar of Water Guide
You can collect water with empty jars (either make them, or find them) in the Forest Well (there’s waterspouts on the walls).
Also you can find the water inside the well.
Another way – via some smaller wells later in the game.
Or you can also inspect the wellsprings with the witch-eye and it will give you the crafting recipe for jars!