It looks like this is going to be a bit more involved than I first thought.
viewtopic.php?f=5&t=3894

Thanks for the good advise Peter. I will do just as you say and see what happens.
Great YouTube channel by the way.

Cheers for that mate.
Will keep you all up to date with what happens

Hi everbody, After posting in the tech section that my S400 had developed an air leak and getting some quick and helpful answers i have just taken the action out of the stock to have a look and found the air gauge dog leg covered in tool marks and chewed up edges. Worst still is the fact that one of...

Sure will. Julian will be the man to turn to.

Cheers for your quick responce. Much appreciated

Hi everybody.
My new S400 is leaking from the air gauge dog leg. Am I right in thinking that the dog leg fixing bolt is under an anti tamper seal.
If this is so is the method of removal the same as the other anti tamper disks. ?
Many thanks for any help and guidance

Cheers all

Deffo the dive shop. The place where I get my bottle filled does magnetic ones for a few quid.

Cheers lads