The fat TB vac had two holes in it. The top one that goes into the white nipple with a clear tube is just plugged, It doesn't go to anything. Underneath that I have the vac routing to this.
http://i.ebayimg.com/00/s/MjcwWDMwMA==/$%28KGrHqJ,!i4E-%29cU%29z6dBQ!HqsSL!g~~60_35.JPG