I had some free time today, so I started on the "Winter Waterer" I needed to come up with something to water my chickens in the winter time. So I came up with this. I have to make a heated base (a project for another day) that this will sit on yet, to keep the water from freezing on the cold days. I made it out of Aluminum. and I'm using a 3-liter soda bottle for the container. That way I don't have to lug a bucket of water out to the barn to fill up the waterer, I can have a full bottle on hand in the house, and just exchange out the low/empty bottle with a full one. I didn't really have a plan, just an idea in my head, and I looked to see what we had sitting in the metal rack, to work with, and I came up with this. I formed up a pan for the base out of 1/8" sheet, machined a hole in the top plate that fit the 3-liter bottle, and cut a piece of tube that fit the outside diameter of the bottle. (to my suprise it fit the bottle perfectly) Then tig welded it all together. I have it so that it fills up the bottom of the tray with about 3/4" deep of water.