mouth organ type noise

[Bratface]

So your regulator may have an issue but you plan on diving it anyway?

Granted it may be something small but why would you chance it?

Remember the first rule of scuba: Never do anything Stupid

pd:

 

[Couv]

If it plays in the key of C keep it. If not trade it for one that does or perhaps a chromatic.

Seriously, some second stages just honk out of the water and are of no concern. But rather than take chances see this thread for some checks you can and should do to avoid playing the blues.

http://www.scubaboard.com/forums/regulators/260452-regulator-checklist-inspection.html

Skip to post 14 for the latest revision.

Couv

 

[NoVaScuba]

If you're not in the water; it (the diaphragm) may vibrate. Try it in the water. It will probably be quiet.

My R190 vibrates on the surface and not in the water and it was recently serviced. I don't see it as a problem.

 

[drbill]

Well I've what I think are similar issues. In one case there were actually cracks in the core of the first stage. The reg still breathed fine but it sounded like a sub-Duck and my buddies thought I was calling them. Second one (slightly different noise) was a diaphragm-related issue in the second stage. I'd have yours checked just in case.