I don't have that, but I have one of those automatic water things, just with the jug upside down. We refill it probably every other day, but we do have to clean it at least every other week, or it gets gross in the bowl. I also love this: http://www.scatmat.com/Products/WaterDog/overview.asp
It turns on when your dog approaches. I'm sure it would take a bit of getting used to, though. Poor Boomer is already scared of the gurgling sounds of the automatic waterer.