CCR Trimix on an Air Dil Cert

Mark Chase · 19th April 2006, 18:54

CCR mix qualified now but I voted for the Mod1 & Normoxic as this is what i used as soon as i finished the Mod1 course and managed to hold a stop.

In the UK 30 -40m on air on a CCR for me is not a safe way to dive. There was no way I was going to do 100 hours of 20 -25m diving.

ATB

Mark Chase

Jordan · 19th April 2006, 19:00

Quote: (Originally Posted by Andy M)

Really? Where did you get this information from, I have not heard it before.

It would be useful for me if I was able to point this out if having problems getting mix in 3L cylinders. (Having said that, I havnt had a problem yet)

Yes, I only have MOD1 IANTD but am OC mix qualified and dive CC mix. Cant do IANTD CC mix as I have a SK...

Interpolation from the S & P. I could look it up and give you a page number, but I may not get around to it tonight, as I will be busy packing for Ocean Fest and setting up my Otooptima for its first venture into salt water Friday morning...diving to 145 fsw off Jupiter to Hole In The Wall... and of course I am taking helium (so that I can remember seeing Randy Jordan's Great White Shark)

ccscuba · 19th April 2006, 19:42

I have a trimix ccr cert, and oc trimix cert, but I don't have a trimix ccr cert for the rebreather that I use now....

dantheman · 19th April 2006, 20:01

Quote: (Originally Posted by Jordan)

Interpolation from the S & P. I could look it up and give you a page number, but I may not get around to it tonight, as I will be busy packing for Ocean Fest and setting up my Otooptima for its first venture into salt water Friday morning...diving to 145 fsw off Jupiter to Hole In The Wall... and of course I am taking helium (so that I can remember seeing Randy Jordan's Great White Shark)

CCR Diver: pg 38

Advanced Recreational Trimix: pg 35
( OC Mix > Adv Rec Tmx )

Jordan · 19th April 2006, 20:50

Quote: (Originally Posted by dantheman)

CCR Diver: pg 38

Advanced Recreational Trimix: pg 35
( OC Mix > Adv Rec Tmx )

Yep - You ARE the man, lol. Says something like the dil PPo2 can't exceed 1.0 and bailout PPo2 can't exceed 1.6... that's all it says (doesn't mention anything about Helium...hence the interpolation). I believe it says you can use He in your bailout gas, so long as the o2 content is between 28 and 40%.

dantheman · 19th April 2006, 21:06

Quote: (Originally Posted by Jordan)

Yep - You ARE the man, lol. Says something like the dil PPo2 can't exceed 1.0 and bailout PPo2 can't exceed 1.6... that's all it says (doesn't mention anything about Helium...hence the interpolation). I believe it says you can use He in your bailout gas, so long as the o2 content is between 28 and 40%.

Section D, #5:
A diver using Recreational Trimix in the Diluent must have use mixtures within
the limits of Advanced Recreational Trimix.

(sic)

--dan

jhaaja · 20th April 2006, 10:01

Quote: (Originally Posted by Jordan)

IANTD's basic Rebreather cert allows one to use normoxic mix as their dil if they are OC certified on mix. I currently fall in this category...and yes, I use He in my dil.

So I have not been broking the "law" after all

So I can proudly use at least normoxic diluents with my ybod.

That has changed from 2003 --> 2005 IANTD standards?

JH

Robert Cook · 21st April 2006, 12:09

I've now got a mix cert, but didn't use mix until I had it...

Am I the only one on here who actually put in the initial time shallow, rather than going into deep-ish dives after a few hours

Thanks,
Robert

***Beanie*** · 21st April 2006, 12:45

Quote: (Originally Posted by Robert Cook)

I've now got a mix cert, but didn't use mix until I had it...

Am I the only one on here who actually put in the initial time shallow, rather than going into deep-ish dives after a few hours

Thanks,
Robert

Nope
Did loads of time on air dil diving to 30m before moving onto mix.
did dive mix before getting a ticket but had started the course, not because I had to or wanted the course first just I had no He at the time.

Since then i've dived nothing but mix (save one week in the red sea) OK currently its 21/8, but them I'm currently doing 20-30m dives

rdmmdr · 22nd September 2006, 18:58

maybe this is a stupid question but can somebody tell me why a light trimix is not standard dil for mod1 say 21/20. just to make sure everyone keeps thier heads straight.
rick

View Poll Results: You have only an Air Dil CCR Cert, do you use He in your Dil?
I have an Air Dil Cert and use only Air Dil	25	15.63%
I have an Air Dil Cert but use Normoxic Trimix (greater than 16% O2 in the Dil)	38	23.75%
I have only an Air Dil Cert but use a Hypoxic Trimix (Less than 16% O2) in the Dil	43	26.88%
I have a Trimix CCR Cert	54	33.75%
Voters: 160. You may not vote on this poll

19th April 2006, 18:54	#21 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Re: CCR Trimix on an Air Dil Cert CCR mix qualified now but I voted for the Mod1 & Normoxic as this is what i used as soon as i finished the Mod1 course and managed to hold a stop. In the UK 30 -40m on air on a CCR for me is not a safe way to dive. There was no way I was going to do 100 hours of 20 -25m diving. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
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19th April 2006, 19:00	#22 (permalink)
Jordan EBT called me stroppy! Current Rebreather/s: Optima Other Rebreather/s: Join Date: May 2005 Location: Garner, NC Posts: 226	Re: CCR Trimix on an Air Dil Cert Quote: (Originally Posted by Andy M) Really? Where did you get this information from, I have not heard it before. It would be useful for me if I was able to point this out if having problems getting mix in 3L cylinders. (Having said that, I havnt had a problem yet) Yes, I only have MOD1 IANTD but am OC mix qualified and dive CC mix. Cant do IANTD CC mix as I have a SK... Interpolation from the S & P. I could look it up and give you a page number, but I may not get around to it tonight, as I will be busy packing for Ocean Fest and setting up my Otooptima for its first venture into salt water Friday morning...diving to 145 fsw off Jupiter to Hole In The Wall... and of course I am taking helium (so that I can remember seeing Randy Jordan's Great White Shark) __________________ Is it clear? No. Well, let's go anyways. "Those who would sacrifice a little freedom for a little order, will lose both, and deserve neither." Thomas Jefferson
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19th April 2006, 19:42	#23 (permalink)
ccscuba New Member Current Rebreather/s: Inspiration Classic Ouroboros Other Rebreather/s: Join Date: May 2005 Location: England Posts: 73	Re: CCR Trimix on an Air Dil Cert I have a trimix ccr cert, and oc trimix cert, but I don't have a trimix ccr cert for the rebreather that I use now....
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19th April 2006, 20:01	#24 (permalink)
dantheman Emoticonoclast Current Rebreather/s: Sport Kiss rEvo Other Rebreather/s: Classic Kiss rEvo Join Date: May 2005 Location: NorthEast USA Posts: 390	Re: CCR Trimix on an Air Dil Cert Quote: (Originally Posted by Jordan) Interpolation from the S & P. I could look it up and give you a page number, but I may not get around to it tonight, as I will be busy packing for Ocean Fest and setting up my Otooptima for its first venture into salt water Friday morning...diving to 145 fsw off Jupiter to Hole In The Wall... and of course I am taking helium (so that I can remember seeing Randy Jordan's Great White Shark) CCR Diver: pg 38 Advanced Recreational Trimix: pg 35 ( OC Mix > Adv Rec Tmx )
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19th April 2006, 20:50	#25 (permalink)
Jordan EBT called me stroppy! Current Rebreather/s: Optima Other Rebreather/s: Join Date: May 2005 Location: Garner, NC Posts: 226	Re: CCR Trimix on an Air Dil Cert Quote: (Originally Posted by dantheman) CCR Diver: pg 38 Advanced Recreational Trimix: pg 35 ( OC Mix > Adv Rec Tmx ) Yep - You ARE the man, lol. Says something like the dil PPo2 can't exceed 1.0 and bailout PPo2 can't exceed 1.6... that's all it says (doesn't mention anything about Helium...hence the interpolation). I believe it says you can use He in your bailout gas, so long as the o2 content is between 28 and 40%. __________________ Is it clear? No. Well, let's go anyways. "Those who would sacrifice a little freedom for a little order, will lose both, and deserve neither." Thomas Jefferson
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19th April 2006, 21:06	#26 (permalink)
dantheman Emoticonoclast Current Rebreather/s: Sport Kiss rEvo Other Rebreather/s: Classic Kiss rEvo Join Date: May 2005 Location: NorthEast USA Posts: 390	Re: CCR Trimix on an Air Dil Cert Quote: (Originally Posted by Jordan) Yep - You ARE the man, lol. Says something like the dil PPo2 can't exceed 1.0 and bailout PPo2 can't exceed 1.6... that's all it says (doesn't mention anything about Helium...hence the interpolation). I believe it says you can use He in your bailout gas, so long as the o2 content is between 28 and 40%. Section D, #5: A diver using Recreational Trimix in the Diluent must have use mixtures within the limits of Advanced Recreational Trimix. (sic) --dan
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20th April 2006, 10:01	#27 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 884	Re: CCR Trimix on an Air Dil Cert Quote: (Originally Posted by Jordan) IANTD's basic Rebreather cert allows one to use normoxic mix as their dil if they are OC certified on mix. I currently fall in this category...and yes, I use He in my dil. So I have not been broking the "law" after all So I can proudly use at least normoxic diluents with my ybod. That has changed from 2003 --> 2005 IANTD standards? JH
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21st April 2006, 12:09	#28 (permalink)
Robert Cook Custom Title Allowed! Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Apr 2005 Location: Edinburgh Posts: 107	Re: CCR Trimix on an Air Dil Cert I've now got a mix cert, but didn't use mix until I had it... Am I the only one on here who actually put in the initial time shallow, rather than going into deep-ish dives after a few hours Thanks, Robert __________________ Do not underestimate the power of the dark side
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21st April 2006, 12:45	#29 (permalink)
*Beanie* give a man an inch....... Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,174	Re: CCR Trimix on an Air Dil Cert Quote: (Originally Posted by Robert Cook) I've now got a mix cert, but didn't use mix until I had it... Am I the only one on here who actually put in the initial time shallow, rather than going into deep-ish dives after a few hours Thanks, Robert Nope Did loads of time on air dil diving to 30m before moving onto mix. did dive mix before getting a ticket but had started the course, not because I had to or wanted the course first just I had no He at the time. Since then i've dived nothing but mix (save one week in the red sea) OK currently its 21/8, but them I'm currently doing 20-30m dives __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk
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22nd September 2006, 18:58	#30 (permalink)
rdmmdr designer of death Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Mar 2006 Location: kerman,california Posts: 372	Re: CCR Trimix on an Air Dil Cert maybe this is a stupid question but can somebody tell me why a light trimix is not standard dil for mod1 say 21/20. just to make sure everyone keeps thier heads straight. rick
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