I uses a contraption that is part hose, part PVC in 2in diameter and it works great. The trick is to have at least one valve. I used two on mine. One on the end, and one in the middle. This makes it way easier to prime it. I also have an additional length on the end that is equal to twice the depth of the tank, which allows me to prime and syphon down to the last few inches of the tank with out me having to climb in.