The small tank seems to be a very simple thing, if well-made: thick glass, a glass door with a fancy golden locking device attached to it (now opened), and that's about it. No pipes to run air or water through it, no other major features. Seems pretty much sealed when closed. There is no distinctive pickle smell, or any other notable smell, for that matter.

When you explain how you are going to transport them without them getting dry, Eliza and Rayland agree to return to the village.

Spoiler
Show
Anything else to do in this tower or moving out and away?