The pump that runs the vacuflush does not shut off. Anyone run into that problem?

I guess you know your tank is always empty??? What you need to do is take the cover off the tank and adjust the arm with the ball on it ....

You probably have an air leak as the pump for a vacu flush pumps to build a vacuum on the toilet. Also look at your bill valves on each side of the pump. You can add a little water in the bowl to see if it has a leak at the ball in the toilet. There is also a pressure switch that is mounted on the tank next to the pump.