I've watched several youtube videos on inflating bike tires. i have presta valves on mine.
When I the top is screwed completely on it works but i'm told this is just pressurizing the inside of my pump. When I unscrew the top to open the valve, the tire doesn't inflate at all. What am I doing wrong?
After opening the valve, I put the pump on the stem and push all the way down with the switch perpendicular. In this position I can hear air coming out of the tire.
Then I put the switch up so that it's parallel to the valve and the rest of the pump piece. Then I can hear air stop leaking and it seems ready to pump.
However, when I actually pump to put air in I can hear the air going everywhere except in my tire. What am I doing wrong?