Pneumatic help

[Laser]

Hi,
I've got a antweight pneumatic system with a lego ram, giantcod valve (http://www.giantcod.co.uk/operated-swit ... 03734.html ) and a deodrant can tank
It is leaking at the valve, What should I do to stop it leaking?

[josh]

Silicon grease inside the valve, possibly a touch of glue around the pipe fixtures and where the brass nipples are screwed into the valve manifold.