"What if ..?"

[Red Sea Shadow]

What if the world ends on 2012?....

Then we won't be missing much; just 2 years

 

[Cave Diver]

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A ScubaBoard Staff Message...

Keep it on topic guys

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[Mark Michaud SELAUSAR]

What difference does the gas make? You're drawing it under pressure.

The efficiency with which the human lungs process oxygen is possibly sufficiently low that my exhale will sustain your life... I'd like to see someone pull that off, though.

I will probably get dinged or edited, for this, but you are questioning a kid that, if I remember right (from previous postings) is 16 or 17 with little real experience to be speaking with so much authority on stuff he has read about. I do like to hear people, who have real experience post as it is real experience that allows us to learn. I don't mean to hurt any ones feelings but it is what it is. If this violates the TOS then please delete it.

 

[Dr Wu]

I will probably get dinged or edited, for this, but you are questioning a kid that, if I remember right (from previous postings) is 16 or 17 with little real experience to be speaking with so much authority on stuff he has read about. I do like to hear people, who have real experience post as it is real experience that allows us to learn. I don't mean to hurt any ones feelings but it is what it is. If this violates the TOS then please delete it.

Why do you say that? Blackwood and Atomic-Diver seem to have a great deal of experience.

 

[Mark Michaud SELAUSAR]

Why do you say that? Blackwood and Atomic-Diver seem to have a great deal of experience.

My comment concerns Atomic Diver. If you go to his profile and pull his posts he has been everywhere and done just about everything. He is a young man who probably reads alot and has a lot of time on his hands. Check out this link.
http://www.scubaboard.com/forums/cave-diving/308650-cavern-cert-5.html#post4818982 I am sure he means no harm, but he is not what he presents hmself to be. He has mentioned in the last few days he has recently obtained his GED, is taking a year off and then co to college, he smokes, drinks occasionally, like any teen, and takes adhd meds. All of that is his business and has no bearing on what a person knows or doesn't know. It just shows that he, by his own admissions is high school aged.

I am only concerned that someone will take his words (which may be right and may not) as coming from an experienced person, which he is not. I wish the profiles (one shown on a post) had a place for our age. Putting a pic also shows who you are, if it is your own pic.

This is a great thread that can provide a lot of solid information from real experienced people.

 

[Gilldiver]

I was told in my cave diving classes that there is a "modern" way to share air, and an "old fashioned" way to share air.

Now, we put the OOA diver in front.

Back in the day, they put the OOA diver in the back.

Why? So if you looked at your SPG and saw you wouldn't have enough gas to survive, you could give a sharp jerk on the hose, pulling the second stage free from your buddy's mouth, and continue on out of the cave without him using your gas supply.

How true that story is, I don't know, but it does give one pause.


I think the "close the isolator" idea isn't bad. And, if you are at thirds of your original starting pressure, and you isolate, it does seem to me that each diver does get 1/6th of original gas, as another poster stated. However, the idea isn't that you have a failure when you reach 1/3rd of your original gas volume. When you reach 1/3rd of your starting volume, you should be breathing from that great stage bottle known as Earth's atmosphere.

Well, if you are diving with a guy on a double hose reg and he has the remaining gas, you could cut his exhaust hose next to the can and breath his exhaust with no additional load on his tanks.

 

[Hank49]

This is a great thread that can provide a lot of solid information from real experienced people.

It was not a question of how could you save the both of you, although it has drifted into that.
It's about having no options....there is no way you can save both...there isn't enough air. Who would you save"? Yourself? Or your buddy...or could you bail on your buddy.

 

[Blackwood]

I will probably get dinged or edited, for this, but you are questioning a kid that, if I remember right (from previous postings) is 16 or 17 with little real experience to be speaking with so much authority on stuff he has read about.

To be fair, the question was theoretical/medical one. No practical diving experience needed.

 

[Mark Michaud SELAUSAR]

It was not a question of how could you save the both of you, although it has drifted into that.
It's about having no options....there is no way you can save both...there isn't enough air. Who would you save"? Yourself? Or your buddy...or could you bail on your buddy.

On my first post I answered this question. You are right, as in most threads, it seems to drift.

 

[Mark Michaud SELAUSAR]

To be fair, the question was theoretical/medical one. No practical diving experience needed.

If all of the answers were true to form I would agree. The true correct answers for this thread would be:

a. I would save myself or
b. I would give my buddy my gas, even though my buddy has used all of theirs, and allow my buddy to live thus sacrificing myself.

When we step in an offer more than a or b we open ourselves up to where the threads move to.