NOTE:Applying an external vacuum source to a player system via a "T" fitting can only be done in a few player systems. Namely the Simplex and early Aeolian players. Almost all others have devices inside the exhauster assembly which control the flow of vacuum to the stack, air motor, and air motor governor (and other peripheral devices -if there). A better alternative to drilling a hole in the reservoir is making a new spring access panel. Most reservoirs have a spring access panel on the front or back of the reservoir. So, you can remove and save the old one for when you want to return the system to its original state.