Air bottle leaking when pin not depressed

[Ballsey]

I have a Draxxus 4500 68cu bottle, whenever the pin is not depressed it leaks air from the pin at a rapid rate. It started when I unscrewed the ASA and stops whenever the ASA is screwed back in. When I was able to detach the bottle from the marker the results were the same, it leaked and when I pushed the pin in it stopped.

Trying to figure our exactly what's wrong before I go posting it off all over the place.

 

[Evil Rich]

Sounds like the orings on the piston aren't sealing, the oring surrounding the pin could also be worn or the tiny seal on the end of the piston has gone.

Believe or not, these parts actually require a tiny amount of silicone grease/air lube. Could simply be that they have gone dry.
DXS had long style regs on the older bottles and a shorter 'normal' length reg, these are made by Ninja and the new style 'shorter' reg can have it's bonnet and internals swapped directly with current Ninja regs such as the UL but not the Pro

 

[I used to good.Honest]

do what my missus does, if it's dry lube it up or spit on it.
:-D