Need advice on how to handle possible O-ring failure at depth

[herman]

One point that I think should be mentioned...

A small consistent stream of bubbles coming from the vicinity of the reg first stage doesn't necessarily mean that the yoke tank valve o-ring requires replacement or that something is wrong with the regulator.

There is at least one brand/model of reg (Sherwood Brut) for which it is entirely normal to have a small stream of bubbles leaking out from the ambient chamber of the first stage. This leak occurs due to a one-way bleed valve intentionally designed by the manufacturer.

All Sherwoods except the SR-1, not just the Brut, use the dry bleed system so if it's a Sherwood, is should be leaking. If it's not, it needs service.

 

[Warhammer]

Yes, we were taught how to air share, but that doesn't mean we want to do it, so to us, it IS a big deal. I like the suggestion to practice it until it becomes boring though.

It should NOT be a big deal and you should practice it until it is 2nd nature. Same goes for all skills, like mask clearing/removal/replacement, regulator clearing, and etc.