Deco Gas Options

decoweenie · 17th October 2006, 09:23

Quote: (Originally Posted by jhaaja)

I still stick with my TX50/25 + O2 deco gases

Ditto.

This is the shallowest wreck we have here, so we used to do this profile every week-end for years... until lately since the American ship kept threaten to shoot at us for diving so close (i.e. 2 miles away)...

Nemo1957 · 17th October 2006, 10:49

I would use the EAN 50 and 100% O2. Plan some deep stops to get ride of some He before making the switch so the He pressure gradient shouldnt be an issue. These gases give you more options above 70 feet that would be more effective.

***EBT*** · 17th October 2006, 10:54

Silly question, didnt this guy do a course where he learnt about selection criteria for gases?

Anyway, whats all this OC lark, wheres the breather??

jhaaja · 17th October 2006, 10:57

Quote: (Originally Posted by EBT)

Silly question, didnt this guy do a course where he learnt about selection criteria for gases?

Anyway, whats all this OC lark, wheres the breather??

Don´t go off topic

GKAM · 17th October 2006, 11:03

Quote: (Originally Posted by EBT)

Silly question, didnt this guy do a course where he learnt about selection criteria for gases?

Anyway, whats all this OC lark, wheres the breather??

As I said:

Quote: (Originally Posted by GKAM)

I am in the middle of a debate with a friend about deco gas selection for a particular dive. This is about an OC dive on tx 18/45.

..so just humour me pleeease. We can leave the

for another thread.

Thx for the replies so far!

jvos · 17th October 2006, 12:15

I (and my 2 dive buddies) did this dive all summer(25 min. at 230), documenting a new wreck here in lake Michigan. We all used 17/30-17/35, 50%, 100%. I personally like 40%, but we all used the same gas for our dives. I carry an 80 for nitrox, my buddies a 50's and a 40 for 02.

***EBT*** · 17th October 2006, 12:28

Quote: (Originally Posted by GKAM)

Whats wrong with a bit of humour

I notice a lack of comment on the training front. That bit was only half in jest.....

viscya · 17th October 2006, 12:30

Quote: (Originally Posted by EBT)

Silly question, didnt this guy do a course where he learnt about selection criteria for gases?

Anyway, whats all this OC lark, wheres the breather??

Funny you should ask.

FWIW

My NAUI OC trimix instructor recommended 35/25 and 02.
My IANTD CCR trimix recommended Bailout Mix + 50% and 02.

GKAM · 17th October 2006, 13:10

Quote: (Originally Posted by EBT)

Whats wrong with a bit of humour

I notice a lack of comment on the training front. That bit was only half in jest.....

EBT:

I have the training, I have the dives and I know the theory but I am trying to see what people think about a specific question.

Would you rather have me start the post with: "I am a rough, salty sea dog with brass balls and 10^5 dives under my belt. Ex-Navy Seal and commie with all the dive certifications a mortal can posess". Certification levels simply are beyond the scope of this excercise.

Try this link as it may help identify whick lobe does more work for you.

Herrmann International : HBDI FUNdamentals: Intro to Whole Brain Thinking (TM) Course

I lived in Brighton

for 4 years back in the early '90s. All this time with a BSAC club and I still can't quite figure out you Brits. Strange sense of humour.

/GKAM

***EBT*** · 17th October 2006, 13:15

Quote: (Originally Posted by GKAM)

I lived in Brighton

and still you do this in public?

Quote: (Originally Posted by gkam)

I still can't quite figure out you Brits. Strange sense of humour.

S'ok, we live in a land where the weather changes faster than a discussion forums direction. What do you expect

PS. I was asking about HIS training..... anyway... I'll stop beating the horse, it should be tender enough to grill now

17th October 2006, 09:23	#11 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Deco Gas Options Quote: (Originally Posted by jhaaja) I still stick with my TX50/25 + O2 deco gases Ditto. This is the shallowest wreck we have here, so we used to do this profile every week-end for years... until lately since the American ship kept threaten to shoot at us for diving so close (i.e. 2 miles away)... __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
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17th October 2006, 10:49	#12 (permalink)
Nemo1957 New Member Current Rebreather/s: Optima Other Rebreather/s: Join Date: Apr 2006 Location: New York Posts: 77	Re: Deco Gas Options I would use the EAN 50 and 100% O2. Plan some deep stops to get ride of some He before making the switch so the He pressure gradient shouldnt be an issue. These gases give you more options above 70 feet that would be more effective.
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17th October 2006, 10:54	#13 (permalink)
*EBT* Apprentice Luddite Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: UK, Brighton Posts: 1,902	Re: Deco Gas Options Silly question, didnt this guy do a course where he learnt about selection criteria for gases? Anyway, whats all this OC lark, wheres the breather?? __________________ Eagles May Soar, but weasels don't get sucked into jet engines! Rebreather World Terms of service Real diving t-shirts for real divers
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17th October 2006, 10:57	#14 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 883	Re: Deco Gas Options Quote: (Originally Posted by EBT) Silly question, didnt this guy do a course where he learnt about selection criteria for gases? Anyway, whats all this OC lark, wheres the breather?? Don´t go off topic
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17th October 2006, 11:03	#15 (permalink)
GKAM digital nomad Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: May 2005 Location: Greece Posts: 250	Re: Deco Gas Options Quote: (Originally Posted by EBT) Silly question, didnt this guy do a course where he learnt about selection criteria for gases? Anyway, whats all this OC lark, wheres the breather?? As I said: Quote: (Originally Posted by GKAM) I am in the middle of a debate with a friend about deco gas selection for a particular dive. This is about an OC dive on tx 18/45. ..so just humour me pleeease. We can leave the for another thread. Thx for the replies so far! __________________ Stay #
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17th October 2006, 12:15	#16 (permalink)
jvos New Member Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Other CCR Home Build Join Date: Jan 2006 Location: Michigan Posts: 13	Re: Deco Gas Options I (and my 2 dive buddies) did this dive all summer(25 min. at 230), documenting a new wreck here in lake Michigan. We all used 17/30-17/35, 50%, 100%. I personally like 40%, but we all used the same gas for our dives. I carry an 80 for nitrox, my buddies a 50's and a 40 for 02.
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17th October 2006, 12:28	#17 (permalink)
*EBT* Apprentice Luddite Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: UK, Brighton Posts: 1,902	Re: Deco Gas Options Quote: (Originally Posted by GKAM) Whats wrong with a bit of humour I notice a lack of comment on the training front. That bit was only half in jest..... __________________ Eagles May Soar, but weasels don't get sucked into jet engines! Rebreather World Terms of service Real diving t-shirts for real divers
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17th October 2006, 12:30	#18 (permalink)
viscya Wrecking Crew Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Oct 2005 Location: Marlton New Jersey Posts: 140	Re: Deco Gas Options Quote: (Originally Posted by EBT) Silly question, didnt this guy do a course where he learnt about selection criteria for gases? Anyway, whats all this OC lark, wheres the breather?? Funny you should ask. FWIW My NAUI OC trimix instructor recommended 35/25 and 02. My IANTD CCR trimix recommended Bailout Mix + 50% and 02. __________________ "There is nothing majestic or dignified about being left to silently rot and collapse under heaps of old fishing net forgotten and unappreciated in dark and unvisited waters." DrMike
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17th October 2006, 13:10	#19 (permalink)
GKAM digital nomad Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: May 2005 Location: Greece Posts: 250	Re: Deco Gas Options Quote: (Originally Posted by EBT) Whats wrong with a bit of humour I notice a lack of comment on the training front. That bit was only half in jest..... EBT: I have the training, I have the dives and I know the theory but I am trying to see what people think about a specific question. Would you rather have me start the post with: "I am a rough, salty sea dog with brass balls and 10^5 dives under my belt. Ex-Navy Seal and commie with all the dive certifications a mortal can posess". Certification levels simply are beyond the scope of this excercise. Try this link as it may help identify whick lobe does more work for you. Herrmann International : HBDI FUNdamentals: Intro to Whole Brain Thinking (TM) Course I lived in Brighton for 4 years back in the early '90s. All this time with a BSAC club and I still can't quite figure out you Brits. Strange sense of humour. /GKAM __________________ Stay #
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17th October 2006, 13:15	#20 (permalink)
*EBT* Apprentice Luddite Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: UK, Brighton Posts: 1,902	Re: Deco Gas Options Quote: (Originally Posted by GKAM) I lived in Brighton and still you do this in public? Quote: (Originally Posted by gkam) I still can't quite figure out you Brits. Strange sense of humour. S'ok, we live in a land where the weather changes faster than a discussion forums direction. What do you expect PS. I was asking about HIS training..... anyway... I'll stop beating the horse, it should be tender enough to grill now __________________ Eagles May Soar, but weasels don't get sucked into jet engines! Rebreather World Terms of service Real diving t-shirts for real divers Last edited by EBT : 17th October 2006 at 13:19.
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