i was curious as to the positioning of the fans and i guess now, how they keep it cooled, https://www.google.com/search?q=vacuume+in+series&ie=utf-8&oe=utf-8#q=vacuum+pumps+in+series , lol, I am an idiot, https://www.physicsforums.com/threads/vacuum-pumps-in-series.448085/ , i didnt realize this...