What would you attempt to fix without surfacing?

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I won't be attempting to do that any time soon ... :D

You really should.

I did that once. It took no more than a minute. I simply unscrewed the second stage cover, pulled out the diaphragm, wiped it clean and reinstalled it. No biggie.

Exactly. It's really very simple, as long as your reg is designed to be disassembled without tools.
 
It depends where in the dive I am and on what type of dive I am on. On good visibility (5+ feet) dive where I am staying shallow (60 or less) given most of my dives are at the local quarries (with a hard bottom) short of losing all my back gas or wing failure I will continue the dive. Same as others have said, free flowing reg, lose hoses, etc. That said if i am on my way to a deeper dive in bad viz I am much more inclined to call a dive for small leaks etc... I think it all depends on the risk profile of the dive.
 
Since this is in the advanced forum. 1800 feet back in a cave, you better be able to fix anything and everything or your dive will become someone’s recovery dive.
In cave diving there is no rescue dives, only recovery dives. Except the very rare instance.
 
Oh my bad as I had not read the thread correctly. Did not realize this was related to cave diving. I get your point...

it's not pointed at cave diving, just an explanation that when you get to that level the things that you really want to take care of in certain environments, particularly where surfacing isn't an option. If you can surface, they're most always much easier to fix at the surface so you will choose to do that
 
I thought about starting this thread to have a better idea of what "advanced" divers should, and should not, attempt to fix while underwater.

Cave and other kinds of technical diving are soooo far away into the future for me; I won't be doing any of that, any time soon.

But, I have noticed that here, on SB, a great number of technical divers will spontaneously join in to all types of conversations on "lower-level" forums (if I can call them that).

So I am not all that surprised by a post about cave diving, out of the blue.

The more information, the better. :)
 
@Roger Hobden that is because many of us choose to ignore the industries insistence on that level of self sufficient diving being "technical" in nature.
As said above, at our AOW and Rescue level, "scuba 2" we teach all sorts of in water repairs of gear. Removal of the scuba unit to fix cam bands, second stage cover removal to clear debris and how to breathe on a compromised second stage, how to purge a regulator down and tighten a fighting that came loose and caused a leak *while air-sharing*. None of this is "technical" diving, it's just stuff that you can fix without having to surface because there's no point in surfacing to do it when it can be done easily in the water.

Things like straight up replacing o-rings, putting port plugs in for leaking hoses etc. is certainly not something you're going to attempt unless you have to, but even that is not that "technical" in nature though admittedly much better to do at the surface
 
Agree. I would love to get cave certified and go down that road. Unfortunately not in the cards right now plus I would not get to do it often as I don't live in cave country and traveling often to do it is not in the cards either. In reading this thread it reminds me all over again of the limitations of both OW and AOW classes. I also believe that those classes should be beefed up big time and much more should be taught in them. Its not only about cave and technical diving. Its about teaching someone skills we all should know when we dive.
 
When I took the equipment specialist class back in the 1980's at PDIC HQ it was more like the repair clinics you can only get now if you work for a dive shop and become a certified repair tech for a manufacturer. Recreational diving instruction seems to keep costing more and providing less. It seems that the advent of "tech diving" has allowed for a mindset in scuba diving that recreational divers aren't capable divers. This is dangerous and untrue.
 

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