this is the very first thing i tell people who plan to use a nose-clip for diving. it is a very real danger. i've harped on about it a few times on DB. some people do it intuitively but most people have to actually learn to do it. the glottis should to be opened too, not just the soft palate.
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I've got an idea- breathold with Scuba
- Thread starterLiquidRush
- Start date
Thread Status: Hello
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Some people specifically teach to always remove the nose clip at the start of ascent for this reason. I think those most at risk are those who can clear their ears easily but haven't used noseclips before. If you can't clear your ears easily, the build up of pressure may be more likely to push air back into the pharynx by forcing the soft palate open. Then again, these people may still be at danger due to the standard reverse-block in the eustaceans.
Anyway, back to the main thread - I'm amazed that anyone would want to blother with the BCD idea when positively bouyant at the surface. I wouldn't want to have to bother kicking down! I'd weight myself good and heavy!
Anyway, back to the main thread - I'm amazed that anyone would want to blother with the BCD idea when positively bouyant at the surface. I wouldn't want to have to bother kicking down! I'd weight myself good and heavy!
If he actually got out there and messed with it, I am sure he would decide to do it SCUBA style, weigh heavily for negative bouyancy at surface with BC fully deflated. It sounds potentially fun, and I feel that at any reasonable depth I could survive an equipment failure.
haha, yea exactly, i'm just very interested in No-Limits-type diving, and this is just like a crude version.
Thanks all for the input, (even those celebrating my stupidity). I'll use it constructively. I realise that this is potentially dangerous, but I would start small and be as safe & prudent as possible.
During no-limits diving, these guys seem to come up quite quickly. With this little contraption, you could focus solely on the breathhold without having to expend any energy. Sink slowly, ascend slowly, and controlled. I know what I'm doing with scuba.
Anywayz, thanks again.
Thanks all for the input, (even those celebrating my stupidity). I'll use it constructively. I realise that this is potentially dangerous, but I would start small and be as safe & prudent as possible.
During no-limits diving, these guys seem to come up quite quickly. With this little contraption, you could focus solely on the breathhold without having to expend any energy. Sink slowly, ascend slowly, and controlled. I know what I'm doing with scuba.
Anywayz, thanks again.
Since you are determined to do this, please post your results to this thread. I am interested to see how it works out.
Alun and I have done some slate/stone variable weight diving before - it is really good fun and wierd to be down at 40m without expending any effort to get there.
The best 'stone' I had was a 6 foot iron bar - I pointed it down and boy did it drag me fast!
The best 'stone' I had was a 6 foot iron bar - I pointed it down and boy did it drag me fast!