If you can find this one, I would definitely consider it. I currently have one in each of my 5 water storage tanks and they have worked flawlessly for 3+ years. I like the fact that they are oil less. I have a phobia about oil leaking into the water.
Wayne RUP160 1/6-Horsepower 3,000 GPH Oilless Submersible Utility Water Pump
.... Ned