We purchased the Pedro's Prestige floor pump and my DH tossed the tag on the pump that told us how to use it. Does anyone have one of these pumps? We've both played with it and I'm convinced that the lever s/b up when pumping b/c it leaks air when it's down, but then when I flip the lever down to take it off the valve I can't get it off. DH says I'm doing it backwards and that's why I'm having trouble. Which one of us is right? I really don't want to break a valve by doing it wrong...