halocline
Contributor
There is another Aussie trait - the sceptic. I don't think I would have posted the OP if I was the "....................scuba technician..... incognito ??????????",
It's happened before. It's always entertaining to offer assistance to a technician that is not supposed to sell us parts because we might kill ourselves.

Usually the good techs recognize the absurdity of the situation and are just normal people interested in solving problems.