Could someone please provide the exact physical location of the
check valve for the suction box on my Aeolian Sting II?  I believe
it has failed as I can still pump with the pedals (more effort now),
however, there is a massive loss of suction and the roll will not
play when I turn on the switch.  Any pictures would be a plus.

Am I heading in the right direction to check this?  Thanks in advance.

Rick Hageman
Pennsylvania