Why scuba diver can't share gas with freediver?

[AfterDark]

Because PADI and the others says. As if a free diver doesn't know about air embolism how stupid they think people are.

 

[Pinecube]

Because PADI and the others says. As if a free diver doesn't know about air embolism how stupid they think people are.

Not all coaches/instructors are equal, and by extension not all training is equal. If someone isn't told the danger (for whatever reason), how are they to know? While most freedivers may know about the dangers, I would never assume that all freedivers know. I do not want to be the one responsible for putting someone in danger over an assumption.

 

[boulderjohn]

Not all coaches/instructors are equal, and by extension not all training is equal. If someone isn't told the danger (for whatever reason), how are they to know? While most freedivers may know about the dangers, I would never assume that all freedivers know. I do not want to be the one responsible for putting someone in danger over an assumption.

I agree. There was a thread in the Cozumel forum some years ago started by someone who was diving the airplane wreck off of the shore of La Cieba. The top of the wreck is only in about 35 feet of water, and snorkelers would go there regularly and then dive down to see how close they could get. Most can't make it all the way to 35 feet, but some can. The diver who started the thread said that while he and friends were exploring the wreck, snorkelers were coming down and trying to get them to share air. How were they to know whether they were being asked for air by someone who had any clue at all about the danger?

 

[mrdre]

... How were they to know whether they were being asked for air by someone who had any clue at all about the danger?

From the other side it's very hardly to believe that a person who freedove to 50 feet, never tried to breathe from scuba regulator, decided to try it for the first time in his life in 50 feet underwater. It is also hard to believe that a person with enough training to descend to 100 feet on single breath never ever even out of curiosity tried scuba.

 

[AfterDark]

Not all coaches/instructors are equal, and by extension not all training is equal. If someone isn't told the danger (for whatever reason), how are they to know? While most freedivers may know about the dangers, I would never assume that all freedivers know. I do not want to be the one responsible for putting someone in danger over an assumption.

IMO if a person is free diving to 100fsw they are probably a scuba diver and or well versed in the affects of diving, pressure and gas. Do you really think someone free diving to 100fsw is ignorant of these effects? The question maybe would have made sense in a pool where anybody could be at the bottom but 100fsw?!!? You ain't gona find just anybody down there holding their breath!

 

[Pinecube]

The question maybe would have made sense in a pool where anybody could be at the bottom but 100fsw?!!? You ain't gona find just anybody down there holding their breath!

There can be freedivers at 100'! I think my jaw dropped to that depth when I watch this the first time: Freediver at 30m 'The arch' at the Blue Hole

I'll stand by what I posted earlier, but if I can shift the focus a little, I am curious. Where do you draw the line? If you assume everyone at 100' knows and understands the danger, what about 80'? 50'? 40'? How 'shallow'(for lack of a better term) can you when you see someone without scuba gear and still think "this guy 'definatly' has training" and at what depth are you when you're thinking "this guy 'might' have training buuut..."?

 

[dumpsterDiver]

If I were at 100 feet and a freediver asked for a reg, I would give it to him. In 20-30 feet, and it was somebody I didn't know, I wouldn't give them air.

I like to snorkel down to say "hi" to my buddies scuba diving. Normally I don't take any air from them. Sometimes it is tough to swim down to them when they are swimming along horizontally. If I got to him and was too tired, I might take a few hits from a reg before the ascent. I think it is more fun to watch them jump, especially when they are solo.


[video=youtube_share;5ivu3Bk9l2M]http://youtu.be/5ivu3Bk9l2M?list=UU1utDku8vJRJYgBZImLyLJQ[/video]

 

[Eric Sedletzky]

I don't think it's inconcievable that a purist freediver, one who never scuba dove and never has intentions to (they are out there), would not necessarily know the physics of compressed air at depth as it relates to scuba diving. Yes, I'm sure they know that the air volume in their lungs gets measurably smaller as they descend, but It's a posibility that since they never sat through the gas portion of a scuba class that they may not put two and two together like we think they would. Some of these people have never taken ANY sort of class, not even a freediving class, but that doesn't mean they aren't great freedivers. Sure, there are the Kirk Krack's of the world who know all the physics, but then there are also a lot of young freedivers too that are just getting into it and haven't gotten that sort of information.
Freedivers never think of breating underwater, it's not even in their vocabulary. I know guys in my area that have freedove their whole lives and they are in their 60's and 70's now, never had a diving lesson and never scuba dove. I've mentioned such things to them the times we've just happened to be gearing up in the same parking lot or side of the road, and they stare at me like a deer in the headlights. Scuba is a foreign language to them.

 

[Scubagolf]

deleted

 

[Eric Sedletzky]

I just looked it up.
The current record for the freediving no limit discipline is 253.2m (830.8 feet)
held by Herbert Nitsch.