&lt;span style='font-size:18px'&gt;Step 15 - &lt;/span&gt;Pull a vacuum with the syringe while you cycle the speed control from fast to slow a few times to get any trapped air from that little space. Now, pressurize the syringe and unscrew the dial to full slow. While you have the pressure on, push the control button a couple of times just for good luck.