RAM Pump.

[alex281]

what do you guys think of this? Im sure we can find a way to incorporate this with a little thought :D Might not be worth it though.

http://www.youtube.com/watch?v=qWqDurunnK8&feature=related


Here it is in action

http://www.youtube.com/watch?v=k06aU3QmgiM&feature=fvwrel

[urbanfarmer]

Nope, not in a closed system.