Thanks mattressbuster, sorry didn't mean to go bagging anyone. I just filled in the automated 'Contact Us' link on the Airush website, there is no real indication where it would go. It was just a bit disappointing to get this automated email from them:
Dear All,
I'll be out of the office until Septembers 3rd. Your message will be attended to upon my return.
Best regards,
Tony.
Anyway, it's all sorted now. Thanks for your help, I will probably contact you soon over a leaking Cabrinha main bladder too.
Cheers
Crumpetboy