Oh oh... I did something out of the ordinary? Was I supposed to read into the experience and give what ifs and speculate?
Air then Nitrox
- Thread starter Lamnid
- Start date
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Okay, your question has been answered, but I have to ask this: were you on a training dive? If you were, then how did your instructor allow you to get OOA? That's a major issue. I wouldn't trust an instructor who lets a dive get to that point. Air sharing should be used for equipment failures. Running out of air due to lack of attention to your spg is not acceptable, especially on a training dive. You shouldn't be ashamed of breathing through your tank. What you should be ashamed of is not surfacing when you should have. Yes, I'm being harsh because this is a dangerous practice. What if your instructor was also low on air?
Dive-aholic:
Whilst I agree with the sentiment and your good intentions I fell this a little harsh given that we have not heard the full story.....
So, lamnid...OOA? Training dive?, Faulty reg? misread SPG...?
limeyx
Guest
Dive-aholic:
Oh, you are so mean ...
Jon-boi:
Bold added - I believe this answers your questions.
limeyx:
Yes, but maybe lamnid will learn from this. The attitude is too relaxed about this, and obviously the instructor didn't deal with it post-dive.
limeyx
Guest
Dive-aholic:
Sorry, I was unclear in my post
[sarcasm] Oh, you're so mean [/sarcasm]
Apologies for the confusion
mattroz:
Do you feel he was not accurate because he used a max PP02 of 1.6 and you think he should have used a PP02 limit of 1.4? Or do you not think air has an OxTox point?
For the rest of the thread, I find it interesting that one instructor is supporting the actions of another under the assumed circumstances. Everyone has a right to take the chances they choose. We all do in diving. But, I would think if you are with an INSTRUCTOR, you are on a training dive and continuing a dive with 2 people on 1 first stage seems like a bad idea if not bad training. (Usually we are kind of going for 2 first stages per person.) Now maybe the instructor had doubles and maybe even a rack of deco bottles. Again, seems like a funny training scenario. The flavor of the post was that the dive continued, not that the dive was turned and the ascent was started.
My initial response was not that actually breathing the nitrox at a switch was bad, but that the diver did it while wondering about it. The pre-dive discussions should have pointed out if there was going to be a restriction on sharing gas.
As far as non-critical posts, the OP was wondering if anyone saw a reason not to do it. I wasn't limiting my response to the mixture upgrade, but the complete dive situtation. Isn't that how we learn to be better divers? I am just now getting to the point (IMHO) where I think I know enough about some basic things to offer my view. Perhaps I don't know as much as I think and critical responses might help fill the gap.
limeyx:
Actually, I got the sarcasm...
I just wanted to be clear that I did want to be mean because what the OP and his instructor did was unsafe.
I think you're all being mean to the OP. Obviously, if he is tethered to the instructor's octo, he is not going to tox.
I've prevented people from smoking cigarettes on boats by telling them I'm diving Nitrox and it could blow up. :lol:
I've prevented people from smoking cigarettes on boats by telling them I'm diving Nitrox and it could blow up. :lol:
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