Inside the dark cave, I find... my tanks! They are newly drilled too! A friendly scientist helped me drill drain holes today. Thanks, George Bell!!
Below, we see another everyday object, the large binder clip, being made to live an unconventional life style. They'll direct the water flow into the tanks at a specific depth.
Here are the water hoses attached to a manifold I found laying around. I think this is their intended use though.