Using a bicycle floor pump with dual smart head and pressure guage.

[@AyushKumar-oh8pv]

When i fix my Schrader valve on the wheel and put the lever down, air starts leaking from the presta valve. I think my pump is faulty.

[@DrCrankysBikesforKids]

Sounds like it. Make sure the pump head is fully pressed down on the valve, if there is any air it should leek out a bit. Then lock it off and pump. If not fully engaged then it sometimes comes out the other hole.

[@Brikkusu]

@@DrCrankysBikesforKids what if all air is coming out of the presta valve and non on the schrader

[@brendamiller8456]

It's Dr. Steve Brule. Check this out.

[@RandomVidReece]

Presta valve is a flimsy terrible design but thanks for the video even if it is something as simple as this can save a lot of hassle buying a new inner tube when I’ve broken mine by not attaching the pump correctly