I'm trying to bleed the air out of the lines for the power top (as I had to replace one of the cylinders). I've read the other posts here, and the instructions in the Body Manual (which is what I'm doing - separate bottle of fluid and letting the pump pull fluid in as needed through the plug to the pump reservoir), but I'm still having issues. Short of pulling the lines, and starting over, or forcing fluid through with a syringe, any tips? When I run the pump and the air runs through the lines, back to the reservoir, how does it get purged out of the system? Is there a vent in the reservoir?