This article is about an earlier version of the Jug. For the pumps Mickey can fill with Paint and Thinner, see Paint and Thinner Pumps.

The Jug Pump is an earlier iteration of the Jug.
It was originally supposed to drag all of the Thinner of the ocean inside the Jug, using various pumps. The largest one, directly next to the Jug, was meant to suck the entire Thinner Ocean into it. At one point, the mechanism was broken, leading to a quest to repair it with paint.
According to The Art of Epic Mickey, inside of the Jug would've been an "underwater world holding all of Disney’s underwater ideas, from Captain Nemo’s submarine to the mermen of The Little Mermaid." A rejected version of Ursula was supposed to be the ruler of said world and would have told Mickey various things about Wasteland, the Blot, and the ink that would've corrupted Wasteland.
It seems that the location of the giant Jug varied during development with some concept art showcasing the Jug to be on the shore of the Thinner Ocean, near the Dark Beauty Castle. While other concept art showcase it to be at the bottom of Mickeyjunk Mountain.