Im looking at selling my transfer flow tank...its the 100 gallon diamond plate aluminum tank. I dont have any of the valves, i just put a T on my overflow line and used a low volume, low pressure 12volt diesel pump with a switch in the cab. works fine. The whole setup is like 1400 new...im asking 500 for just the tank and you can have the small electric pump ive been using. I might trade for something, but not sure yet.