An age-old question: ways to 60m.
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iliketopetsharks
Contributor
Boarderguy
Chief Narctopus Wrangler
Feel it less. It reduces the sudden impact of it allowing the diver to not be overwhelmed by the sudden burden of it.
Air to 70m is beyond the 1.6 ppo2 that many equate to a safe limit, narcossis not withstanding. What we're saying is make your own choice for your own diving, but don't berate and belittle those that choose a different path.
It's similar to GUE diving where everything must be in a team setting where almost everything is the same. In caves and penetration dives that makes sense, open water it seems a bit off putting to the majority where they'll never do the other two.
CG43
Contributor
As a young boy (born August 1953) I dived without any gear down to 6,5m and had some pain with my ears because no pressure kompensation . April 1968 I read Cousteau's book "the silent world" and it became my bibel . I wanted to become a diver and do dives to al this depth and there were many who thought similarly. I will not describe this in detail here, you can read about it in "The Silent World". And shure wie did this and we enjoyed ourselves and that was the main reason why we did it or do it .
As an essential prerequisite for scuba diving, we (at least in germany) always assumed good freediving skills. This was an important part of old school, and it must be considered before labeling us as suicidal lunatics.
In freediving, you must quickly and somewhat instinctively learn to assess your skills against the requirements, and you learn to stay calm if you want to survive especially in danger .
In today's sense, only Cousteau, Hannes Keller, and a few others had Tec diving .
It wasn't all that urgent because we were able to reach significant depths and also had decompression times anyway. Decompression from multilevel dives has always been a mix of estimation and tables, and I would have very much liked to have a computer for that sometimes .
A very skilled OW tech team will follow very similar guidelines to GUE protocols because they dramatically increase safety. Many agencies and instructors are adapting to similar recommendations of what GUE has taught for years because it's what is currently considered "most safe". An unfit team member will kack you underwater whether it's OW, cave, or wrecks. Narcosis and CO2 hits happen everywhere and will kill you quickly when they occur together and take a teammates brain out of the equation.
flymolo
Contributor
Weird that BSAC would set a maximum upper limit for helium content based on depth. As if having 55% helium is somehow worse than 50%. I wonder if they still believe the old "helium penalty" myth about decompression?Looks like BSAC is gettin’ their cult on, too.
The GUE standard gases specify a minimum lower limit for helium content. You can always add more if you like. This is a hassle for gas mixing but can occasionally be useful for project logistics if you can only bring one set of doubles and want to be able to top off with air to do a second dive while keeping the final helium content at or above the minimum for the target depth.
I’ll belittle people who ride motorcycles drunk, and I’ll belittle the people who say it’s ok.
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