aarrgghh valve core just came out

[jim55]

was out on my bike earlier and thought the id top the tyres up when i got in in prep for tomos commute so i blew the front up without a prob ,the rear was blew up(for a short while )when i removed/pulled off the pump head the valve core pinged off in a sudden deflation ,oh well ,new tube required ,just when i read the thread about presta valves being a bit rubbish and thinking to my self "theyve always been ok ime "

 

[screenman]

Mine screw back in.

 

[raindog]

valves are strange things

 

[Rob3rt]

Just screw the valve core back in?

 

[helston90]

^ this

 

[Davidc]

While you're screwing it back in put a dab of loctite on the thread. Or nail varnish.