"Giant" Stride
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totally full. In my case I made the jump with about 45kg of gear on so my experience might not be typical but I made it maybe 5 metres under water from that height with the bladder full.
Empty seems like a bad idea.
R..
Empty seems like a bad idea.
R..
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How deep you want to go on splash down...?
I filled mine, but probly lost some to the release valve on entry.
Generally, I would only put enough to make me about 5-10 lbs positive at the surface. Of course decompression is not the issue, but you do not want your vest to drag you at light speed back to the surface as getting an embolism may mess up the rest of your day.
Deefstes
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Okay, I really had to think about the embolism suggestion, and then got busy with life so haven't been back to this thread, but it makes sense. I was never cautioned, when stepping off of high boat decks or higher and highest Cenote decks, but now I think I understand....
1: If my BC is fully inflated, and I have a 40 lift capacity, then if I sink 3-4 ft or deeper, and happen to take a breath from my reg at ambient pressure right before I do a fast buoyant ascent - embolism is indeed possible. Not good at all!
2: If I deflate the BC and step off, then however deep I sink, I can do a slow, controlled ascent, breathing, but maybe miss the drift line. Not good either.
3: If I hold my snorkel in my mouth as some suggested being taught (sounds like a Padi idea?), or just hold my breath until I surface with the fully inflated BC or maybe exhale slowly but not inhale until I surface, then I am safe...?
1: If my BC is fully inflated, and I have a 40 lift capacity, then if I sink 3-4 ft or deeper, and happen to take a breath from my reg at ambient pressure right before I do a fast buoyant ascent - embolism is indeed possible. Not good at all!
2: If I deflate the BC and step off, then however deep I sink, I can do a slow, controlled ascent, breathing, but maybe miss the drift line. Not good either.
3: If I hold my snorkel in my mouth as some suggested being taught (sounds like a Padi idea?), or just hold my breath until I surface with the fully inflated BC or maybe exhale slowly but not inhale until I surface, then I am safe...?
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Tigerman
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It wasnt covered in AOW either and Ive never heard anyone suggest you should do a entry or ascent without the REGULATOR in your mouth - atleast not for us rec n00bs..
And no, holding a 1 atm breath wouldnt give you any risk whatsover for expansion injuries as the air would occupy the same volume after resurfacing as before you hit the surface.
Taking an extra breath however could be bad, but so could swallowing loads of saltwater instead of air into your lungs because youve got the snorkel in your mouth..
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