i have a foot pump to pump air into my car tire but the tire pressure is not increasing. i have a pump similar to this but i have 2 of those cylinders:
the pump doesn't seem to screw onto the tire. you have to push the end of the pump hose thing onto the tire then lock it into place by pulling down the black handle, but as soon as I put the pump connection onto the tire the air just starts coming out alot and the air just keeps on coming out.
even when i pull the black handle down the air keeps coming out. if i put the pump connection onto the tire loosely the air doesn't come out of the tire but when i pump the air doesn't even go into the tire.