I bought that 3 gallon heated waterer from Premier. I decided to set it up this weekend. I would have to say that it has a design flaw, though it's still quite usable. The rim of the bowl is at almost exactly the same height as the hole the water flows out of. This makes it quite intolerant of a less than level surface. I put mine on the same bricks I'd had my other waterer on, flipped the waterer over and walked away - and it flooded the corner of my coop. Luckily the lowest corner. Before I set it back up I actually used a level to adjust the sand under the bricks, and I also put it inside one of those big balck rubber bowls, the kind you use for horses. I hate to waste the floor space, but I really hate to soak my coop.