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Want to be the first huh?

In my experience kinking hose will not stop free flow from 1st stage freeze up.

Been a cave diver 14 yrs Been in a silt out and off the gold line and remember thinking I might die. But I did as I was trained. Never going diving with this dude.

The picture by trimixtoo is not the same tank as posted by slamfire. One has a j valve and one a k valve. What gives?

hey I'm not speculating just I want to know the facts and wherethey come from?

kevrumbo, everyone is hypercapnic?what are your references for that? Someone done underwater blood gasses or end tidal co2 measurements? just curious.

And the big point is if you feel symptoms and want to ascend, that lowers the PPO2 while the CO bound to your blood stays, multiplying the effect. Ascending makes it worse, but what else can you do said Dan T Some boats I have been on have o2 regs suspended at 20 feet. Get on that and stay till...

Hetland said co poisoning would require a transfusion. Never saw this or heard of it while spending 40 years in a hospital. If the patient is alive oxygen is the trestment, not a transfusion. co has 200 times the affinity to hemoglobin that oxygen has. Get enough oxygen in the blood stream it...

Co exposure does not require a transfusion. It is treated with oxygen. If it is really severe you could go to hyperbaric oxygen to get more than 100%

Good point Bob

who said there was 2200 in the turned off tank?

I heard there was air in both cylinders and I think I saw this earlier in this forum. (third post )2100 in one that was turned off and 1400 in the other that was not turned off. I think that changes the discussion to the man was not able to manage his side mount rig in a dicey situation. Did...

The look in her eyes tells it all. She is lucky to be alive. I agree she should end her diving career .

I think think this thread is an example of the state of training today. When I got certified in 1983 (YMCA) Harassment was part of the training. Our instructors would turn off our air, pull off our mask ,etc. Taught us that things can go wrong and we should be able to fix it ourselves. I thank...

That will not answer the question. In a free flow the intermediate pressure is much higher than in a regular situation. It may be as high as the tank pressure. So instead of about 150 psi intermediate pressure you have potentially 3000 psi. The first stage valve is frozen, litterly iced up. I...

Rubber

I have found that crimping the hose will not shut off a free flow, and I had it completely doubled over like a bobby pin. so don't count on that. This was on a regulator that froze while filling a lift bag. Only shutting the valve stopped a violent free flow.

both i have went up without my buddy(S) and they have went up with out me

Jim, I have sent people to the surface without going with them. My cave instructor has done the same as have many many more of us. You did no wrong! I. Have wondered if Shannon may have made a second attempt to rejoin you,and did further damage to her inner ear. But we will never know. Thanks...