When the dial spins the syringe sucks and blows....at 2am it sucks and at 12pm it blows. Welll sorta just to give you an idea...im sure it sucks all night and then blows all day.
I don't remember the exact quote, but this line reminds me of the Flowbee bit from Wayne's World.
This is a great device! I look forward to reading about the long-term viability of your "Fluidoser".