I'm about to recreate that scene from "The Office" with what they did to the copier. My Curlin pump is driving me crazy!!!! It keeps going off for air in the line and that's IF there is really air there or it's a teeny teeny air bubble. I had problems before a few months ago but then it quit. Now I'm hooking up to a different bag and don't know if my connection is getting the air? Also, I keep trying to prime it and it seems like air gets stuck at the end of the yellow thingy! Any advice or is there a less fussy pump that I won't want to beat down with a baseball bat?!?!