Article about OC Bail-out

cedricverdier · 21st November 2006, 22:23

Hi all,

Just to let you know that I wrote a new article about Open Circuit bail-out. Thanks to Louby Lou, it's in the Rebreather World Library at:
http://www.rebreatherworld.com/rebre...iling-out.html

I hope you'll like it

Cheers

***diverklondike*** · 22nd November 2006, 01:58

Well done as always!

M

***Decodiver*** · 22nd November 2006, 06:48

Hi Cedric,

Thanks for the article.

The only point I would make is that I do not see sanity breaths as a solution to hypoxia, I believe that the only immediate reaction to low O2 is to do a diluent flush, this is taught by every agency I teach for whether IANTD, TDI, PSA or ITDA.

Even with a neck-tied regulator the time it can take to close a DSV and secure the regulator can be too long, especially if the cylinder is closed and we have all found cylinders we believed to be opened that have closed!

A diluent flush is almost instantaneous and can save a life, as stated in a previous thread, I have seen a diver go unconscious coming off the loop to secure a second stage to breathe from.

Cheers,

Dave Cooper.

jhaaja · 22nd November 2006, 07:00

Very nice article Cedric!

I like the approach that does not involve hanging on the compromised loop.

In case of hypoxia I think the fastest and safest way is to go OC if you have a BOV. If not then dil flush.

JH

nmanfield · 22nd November 2006, 07:25

Quote: (Originally Posted by Decodiver)

Hi Cedric,

Thanks for the article.

The only point I would make is that I do not see sanity breaths as a solution to hypoxia, I believe that the only immediate reaction to low O2 is to do a diluent flush, this is taught by every agency I teach for whether IANTD, TDI, PSA or ITDA.

Even with a neck-tied regulator the time it can take to close a DSV and secure the regulator can be too long, especially if the cylinder is closed and we have all found cylinders we believed to be opened that have closed!

A diluent flush is almost instantaneous and can save a life, as stated in a previous thread, I have seen a diver go unconscious coming off the loop to secure a second stage to breathe from.

Cheers,

Dave Cooper.

Cedric, again, great article, many thanks. Just to follow up on what you and Dave said. Just to remind people how important it is when diving with people who dont know how your 'bretaher works. A simple 'push here if I go unconscious (ADV)' could save a life, or 'this is my loop, not a useful hand-hold, it must stay in my mouth' (bit of personal experience there!) .

Just on that - i have a Nemo that I had on my Inspo (which I liked ). Now I've got a Meg - does anyone know if I can get adaptors or fit it?

BTW, Sounds cheeky i know, but and chance of you coming up with a guide to diving with FFMs?

Actually Dave, you should have your BOV for your Nova mask by now, what's it like? (I'm still awiating mine

)

Thanks again,

Nick

***Decodiver*** · 22nd November 2006, 07:28

Quote: (Originally Posted by nmanfield)

Actually Dave, you should have your BOV for your Nova mask by now, what's it like? (I'm still awiating mine

)

Thanks again,

Nick

Mine is swimming across the pond as we speak!!

Cheers buddy, dive safe,

Dave.

nmanfield · 22nd November 2006, 07:41

Quote: (Originally Posted by Decodiver)

Mine is swimming across the pond as we speak!!

Cheers buddy, dive safe,

Dave.

look forward to the article!!!!!

CharlieT · 22nd November 2006, 08:56

Cedric

Thank you for the excellent article, as always.

Charlie

***ScubaDadMiami*** · 22nd November 2006, 15:09

Yes, another great one from Cedric (green already given).

Question: how many have their BOV connected to onboard gas versus offboard? Those of you diving with it connected to smaller tanks onboard, don't you worry about even a few breaths using up all of your diluent on deep dives? What's your take on this?

gathan · 22nd November 2006, 23:34

I have mine connected to my onboard cylinder, but must admit that I have been thinking about moving that set up to an offboard configuration (deep B/O + QC), mainly due to the reason you stated.

Can anyone recommend a simple/robust and reliable QC for this purpose?

Andre Fortin

21st November 2006, 22:23	#1 (permalink)
cedricverdier S21 M.I.B. Current Rebreather/s: Evolution Megalodon Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Sport Kiss Classic Kiss Join Date: Apr 2005 Location: Worldwide! Posts: 486	Article about OC Bail-out Hi all, Just to let you know that I wrote a new article about Open Circuit bail-out. Thanks to Louby Lou, it's in the Rebreather World Library at: http://www.rebreatherworld.com/rebre...iling-out.html I hope you'll like it Cheers __________________ Cedric Verdier PADI Course Director, ANDI-IANTD-PSAI-TDI-DSAT-DAN-NAUI-CMAS Instructor Trainer Trimix (CCR and OC) and Cave Diving Instructor Trainer www.CedricVerdier.com DIRrebreather member
(Offline)

22nd November 2006, 01:58	#2 (permalink)
*diverklondike* Moderator Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Oct 2005 Location: Delaware, USA Posts: 1,436	Re: Article about OC Bail-out Well done as always! M
(Online)

22nd November 2006, 06:48	#3 (permalink)
*Decodiver* Administrator Current Rebreather/s: Megalodon Ouroboros rEvo Other CCR Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Sport Kiss Classic Kiss rEvo Other CCR Join Date: Jan 2005 Location: Geneva Posts: 2,164	Re: Article about OC Bail-out Hi Cedric, Thanks for the article. The only point I would make is that I do not see sanity breaths as a solution to hypoxia, I believe that the only immediate reaction to low O2 is to do a diluent flush, this is taught by every agency I teach for whether IANTD, TDI, PSA or ITDA. Even with a neck-tied regulator the time it can take to close a DSV and secure the regulator can be too long, especially if the cylinder is closed and we have all found cylinders we believed to be opened that have closed! A diluent flush is almost instantaneous and can save a life, as stated in a previous thread, I have seen a diver go unconscious coming off the loop to secure a second stage to breathe from. Cheers, Dave Cooper. __________________ CCR/OC Trimix Instructor Trainer CCR Training to Mixed Gas in Switzerland, France, UK & Germany on Megalodon/COPIS-Megalodon/KISS/Sport KISS/Ouroboros/rEvo/Inspiration/Evolution/Sentinel www.zerogravitydiving.com Rebreather World Terms & Conditions Last edited by Decodiver : 22nd November 2006 at 07:01.
(Offline)

22nd November 2006, 07:00	#4 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 867	Re: Article about OC Bail-out Very nice article Cedric! I like the approach that does not involve hanging on the compromised loop. In case of hypoxia I think the fastest and safest way is to go OC if you have a BOV. If not then dil flush. JH
(Offline)

22nd November 2006, 07:25	#5 (permalink)
nmanfield Megalegalegalegadingdong! Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: May 2005 Location: Odessa, Ukraine Posts: 329	Re: Article about OC Bail-out Quote: (Originally Posted by Decodiver) Hi Cedric, Thanks for the article. The only point I would make is that I do not see sanity breaths as a solution to hypoxia, I believe that the only immediate reaction to low O2 is to do a diluent flush, this is taught by every agency I teach for whether IANTD, TDI, PSA or ITDA. Even with a neck-tied regulator the time it can take to close a DSV and secure the regulator can be too long, especially if the cylinder is closed and we have all found cylinders we believed to be opened that have closed! A diluent flush is almost instantaneous and can save a life, as stated in a previous thread, I have seen a diver go unconscious coming off the loop to secure a second stage to breathe from. Cheers, Dave Cooper. Cedric, again, great article, many thanks. Just to follow up on what you and Dave said. Just to remind people how important it is when diving with people who dont know how your 'bretaher works. A simple 'push here if I go unconscious (ADV)' could save a life, or 'this is my loop, not a useful hand-hold, it must stay in my mouth' (bit of personal experience there!) . Just on that - i have a Nemo that I had on my Inspo (which I liked ). Now I've got a Meg - does anyone know if I can get adaptors or fit it? BTW, Sounds cheeky i know, but and chance of you coming up with a guide to diving with FFMs? Actually Dave, you should have your BOV for your Nova mask by now, what's it like? (I'm still awiating mine ) Thanks again, Nick __________________ Tub 'O Lard
(Offline)

22nd November 2006, 07:28	#6 (permalink)
*Decodiver* Administrator Current Rebreather/s: Megalodon Ouroboros rEvo Other CCR Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Sport Kiss Classic Kiss rEvo Other CCR Join Date: Jan 2005 Location: Geneva Posts: 2,164	Re: Article about OC Bail-out Quote: (Originally Posted by nmanfield) Actually Dave, you should have your BOV for your Nova mask by now, what's it like? (I'm still awiating mine ) Thanks again, Nick Mine is swimming across the pond as we speak!! Cheers buddy, dive safe, Dave. __________________ CCR/OC Trimix Instructor Trainer CCR Training to Mixed Gas in Switzerland, France, UK & Germany on Megalodon/COPIS-Megalodon/KISS/Sport KISS/Ouroboros/rEvo/Inspiration/Evolution/Sentinel www.zerogravitydiving.com Rebreather World Terms & Conditions
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22nd November 2006, 07:41	#7 (permalink)
nmanfield Megalegalegalegadingdong! Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: May 2005 Location: Odessa, Ukraine Posts: 329	Re: Article about OC Bail-out Quote: (Originally Posted by Decodiver) Mine is swimming across the pond as we speak!! Cheers buddy, dive safe, Dave. look forward to the article!!!!! __________________ Tub 'O Lard
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22nd November 2006, 08:56	#8 (permalink)
CharlieT Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Nov 2005 Location: London Posts: 449	Re: Article about OC Bail-out Cedric Thank you for the excellent article, as always. Charlie
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22nd November 2006, 15:09	#9 (permalink)
*ScubaDadMiami* Moderator Current Rebreather/s: Optima Other Rebreather/s: Join Date: Sep 2005 Location: Florida, USA Posts: 1,890	Re: Article about OC Bail-out Yes, another great one from Cedric (green already given). Question: how many have their BOV connected to onboard gas versus offboard? Those of you diving with it connected to smaller tanks onboard, don't you worry about even a few breaths using up all of your diluent on deep dives? What's your take on this? __________________ Howard Packer IANTD CCR Instructor Miami Beach, Florida CCRDiveTraining.com
(Offline)

22nd November 2006, 23:34	#10 (permalink)
gathan MixedGas Current Rebreather/s: Classic Kiss Other SCR Other Rebreather/s: Other SCR Join Date: Sep 2005 Location: Tottenham, Ontario, Canada Posts: 199	Re: Article about OC Bail-out I have mine connected to my onboard cylinder, but must admit that I have been thinking about moving that set up to an offboard configuration (deep B/O + QC), mainly due to the reason you stated. Can anyone recommend a simple/robust and reliable QC for this purpose? Andre Fortin
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