World Record SCUBA dive...
- Thread starter stkr00
- Start date
are ya going to be using just air or maybe a mixed gas like nitrox?
We'll be switching over to Nitrox every 24 hrs in order to give him time to off-gas the nitrogen. He shouldn't actually need this, but we're using it as a safety buffer.
Seriously 05BUSABLU...
If your buddy is truely getting DeCompression Sickness (DCS) frequently, then he really should take some action to prevent it. Either seek help from a dive medice specialist, or take a serious look at his dive profiles with special consideration towards accent rates and bottom time.
Not to insult your diving knowledge here, just giving some feedback. You may already know this stuff, but I don't know your Cert level.
If he is diving tables and is pushing the limits, then he is a prime candidate. Those tables are only a guideline. Each person is different, and their physiology can predispose them to DCS. If he is doing multiple dives over multiple days, then there are warnings to try and be conservative in your dive planning. Remember "SAFE Diver" Slowly Accend From Every Dive".
If he is doing multi-level diving during the same dive, then the standard dive tables WILL NOT work, and he either needs to start using the "wheel" planner, or invest in a nice dive computer. The computers calculate Nitrogen loading a LOT better than you could ever do with the tables, and help you plan repetative dives.
One of the keys to preventing DCS is controlling your accent rate, and making sure that you do AT LEAST the minimum required safety stop (3 min's usually) after every dive. Honestly, you should accend as slow as your remaining air supply will allow. Not to say you have to burn off half a tank during the accent though.
DCS can be minor, or it can hit hard with little or no warning. This can lead to paralysis or even death. I'd hate to see any diver experience this when it is so easily preventable.
Link: http://www.diversalertnetwork.org/
DAN above, has a lot of good information on it, and can also help find people to help your friend control his DCS.
Good Luck
I wonder if he isn't talking about getting 'narced' or nitrogen narcosis. I have a hard time believing that someone would get DCS/DCI that often and still make it into the water. Anyway, good write up above on the DECO stuff.
Sounds like an interesting venture your in the middle of, and that my friend is what life is all about, adventure! The additional training never hurts either, have fun. And if your on TV you ice cream!
Sounds like an interesting venture your in the middle of, and that my friend is what life is all about, adventure! The additional training never hurts either, have fun. And if your on TV you ice cream!
+1 and hey just for giggels if you keep record i would be interested in about how many cubic ft of air one breathes in a weekgood luck to him.
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best of luck to the dude....
wow.
wow.
yeah i was refering to his reaction to getting narced. i may have exagerated a bit because i think its funny but can be a very bad thing i know. he is a dive master and uses nitrox more these days and has great results, but as far as my cert level. the wife and i are just lowly owc. just got cert this last winter in mexico. i would love to follow your adventure. great topic
Goodluck to him!
Nitrogan Narcosis is a whole different ballgame.
This is due to the Narcotic affect of nitrogen due to the associated depth of the dive and the nitrogen concentration within the breathing gas. It is also affected by the physical exertion level of the diver. This is all based on the Partial Pressures of each gas within the mixture. At sea level air is made up of approximately 21% Oxygen, and 78% Nitrogen, and 1% other gases. This gives a nitrogen partial pressure of 0.78 due to nitrogen. As the depth increases, the pressure increases which is also known as Atmospheres(ATM). 1 ATM per 33 feet. You start with 1 so for every 33 feet you add another. Now multiply the ATM by the Partial pressure of each gas to get the partial pressure at depth.
With Nitrox, the Oxygen concentration is increased to usually about 32% or 36%. The maximum partial pressure for Oxygen is 1.60 which works out to about 5 ATM or 132 feet deep. 1.40 is the normal depth limit. If you exceed the 1.60 for oxygen, then the oxygen becomes toxic to the central nervous system. This leads to convulsions, and blackouts with NO warning. Usually the divers that have a CNS hit (Not narcosis) wind up drowning after the convulsions cause them to spit out their regulator.
Nitrox is very safe when used properly, and when used within its depth limitations, can extend you allowable bottom time by a great deal. Especially if your doing repetative dives over several days.
If he is a Dive Master, then he should have the knowledge and skills to plan the dive properly and prevent becoming "Narced". If this is repeatedly happening, then I would warn you as relatively new divers...Be careful of what he tells you, and verify the information for yourselves either through books, or formal dive training. If he wants to push the limits, then let him do it to himself...It is your life and health that is at risk. I'm not trying to destroy his credibiliy...I'm just making sure you take charge of your own safety...especially as newer divers.
Don't worry about only being an OWD. Everyone has to start somewhere. I just got hooked and kept going back for more training.
So far: Since March of 2003
Open Water Diver (PADI)
Advanced Open Water Diver (PADI)
Wreck Diver (PADI)
Nitrox Diver (PADI)
Underwater Photographer (PADI)
Rescue Diver (PADI)
Rapid Deployment Search and Rescue (PADI)
Black Water Diver (PADI)
Public Safety Diver (ACUC)
Not bragging...just figured you might want some credentials for the above replies.
stkr00
Slower Traffic Keep Right ! ! !
Group: Donating Member
Posts: 3367
Avg posts/day:5.34
Joined: Oct. 2003
Location: Wisconsin Posted: July 21 2005,18:05
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I'll be missing until after August 1st. I will check the board briefly each day, but probably nothing more than lurking.
We have a local diver that will be trying to set a new world record for the longest SCUBA dive. He will be trying to stay underwater for seven (7) days
[/QUOTE]
I was informed today that some guy in Tenn. set the first record for 5 days straight and two years ago broke his record by two more days. You might want to check into this Stkr. I dont have any facts to back this statement up but this is what I was told by an associate here at work.
Holla back at'me, Playa .
Ty
<!--EDIT|Rhythm
Reason for Edit: None given...|1122100364 -->
Slower Traffic Keep Right ! ! !
Group: Donating Member
Posts: 3367
Avg posts/day:5.34
Joined: Oct. 2003
Location: Wisconsin Posted: July 21 2005,18:05
--------------------------------------------------------------------------------
I'll be missing until after August 1st. I will check the board briefly each day, but probably nothing more than lurking.
We have a local diver that will be trying to set a new world record for the longest SCUBA dive. He will be trying to stay underwater for seven (7) days
[/QUOTE]
I was informed today that some guy in Tenn. set the first record for 5 days straight and two years ago broke his record by two more days. You might want to check into this Stkr. I dont have any facts to back this statement up but this is what I was told by an associate here at work.
Holla back at'me, Playa .
Ty
<!--EDIT|Rhythm
Reason for Edit: None given...|1122100364 -->
I was informed today that some guy in Tenn. set the first record for 5 days straight and two years ago broke his record by two more days. You might want to check into this Stkr. I dont have any facts to back this statement up but this is what I was told by an associate here at work.
Holla back at'me, Playa .
Ty[/QUOTE]
I think it's still 5+ days. This is the guy that set it last year.
http://www.fishspringsmarina.com/090304.html
The guinesss people will be there, so they should have the official word.
UPDATE:
The TODAY show will have their Chicago film crew out at the dive site, and should be airing some spots on Monday, Wednesday, and one other day I can't remember.
I'll try to take a few pics this week if I have time during the day. I'm doing mainly midnight shifts for my PSD support, so I won't be there during the day much. I'll probably go out there Wednesday evening since I'm off that night.
The TODAY show will have their Chicago film crew out at the dive site, and should be airing some spots on Monday, Wednesday, and one other day I can't remember.
I'll try to take a few pics this week if I have time during the day. I'm doing mainly midnight shifts for my PSD support, so I won't be there during the day much. I'll probably go out there Wednesday evening since I'm off that night.
New Update:
He went into the water at approximately 1:30 pm CST. He was doing okay, but had some issues with the "Dry" suit. It wasn't staying dry inside. We're not sure what happened with the suit yet, but once the inside of the suit and the insulating undergarments get wet, they don't keep you very warm. This, after about 5 hours, lead to us removing his drysuit and getting him into a neoprene wetsuit. His choice...not ours.
...and YES, it is as big of a pain in the azz as it sounds to completely change suits while underwater, but with 4 safety divers working together, it worked out fine.
Last night, he was watching JAWS on the DVD player.
We have a Pelican watertight box modified with a Lexan window to hold the portable DVD player. The DVD player transmits the sound on an FM signal that can be picked up by his H2Audio MP3 Player/Radio. Pretty cool setup.
Overall, it's going pretty well so far, but we're not sure how well the wetsuit is going to keep his core temperature up. This may be the deciding factor for the dive. At least now, we don't have to worry about his bodily functions creating a problem.
I'll post some more as the week progresses.
Thanks for the well wishes everybody
<!--EDIT|stkr00
Reason for Edit: "too dam tired to type correctly"|1122308545 -->
He went into the water at approximately 1:30 pm CST. He was doing okay, but had some issues with the "Dry" suit. It wasn't staying dry inside. We're not sure what happened with the suit yet, but once the inside of the suit and the insulating undergarments get wet, they don't keep you very warm. This, after about 5 hours, lead to us removing his drysuit and getting him into a neoprene wetsuit. His choice...not ours.
...and YES, it is as big of a pain in the azz as it sounds to completely change suits while underwater, but with 4 safety divers working together, it worked out fine.
Last night, he was watching JAWS on the DVD player.
Overall, it's going pretty well so far, but we're not sure how well the wetsuit is going to keep his core temperature up. This may be the deciding factor for the dive. At least now, we don't have to worry about his bodily functions creating a problem.
I'll post some more as the week progresses.
Thanks for the well wishes everybody
<!--EDIT|stkr00
Reason for Edit: "too dam tired to type correctly"|1122308545 -->
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