O2 Injection Point

JonnyB · 6th April 2006, 08:23

Of having the O2 injected in the inhalation lung instead of the exhalation lung.

I see both good points of doing that and bad points...

/Jonny

Mark Chase · 6th April 2006, 08:32

Quote: (Originally Posted by JonnyB)

Of having the O2 injected in the inhalation lung instead of the exhalation lung.

I see both good points of doing that and bad points...

/Jonny

The bad points are obvious, what are the good ones?

Again genuine question, I like Megs and if I had 7k laying arround i would get one.

ATB

Mark Chase

rogeringebo · 6th April 2006, 09:41

If someone go hypo you can get O2 to him quicker......
In my course we were taught to keep O2 manualy and always exhale while adding O2 so you help to push the fresh gas through the system

***Beanie*** · 6th April 2006, 09:44

Quote: (Originally Posted by rogeringebo)

If someone go hypo you can get O2 to him quicker......
In my course we were taught to keep O2 manualy and always exhale while adding O2 so you help to push the fresh gas through the system

Interesting
I would go for dil flush

rogeringebo · 6th April 2006, 09:49

true......depending on depth/mix and so on but I would go for dilflush to...

JonnyB · 6th April 2006, 09:50

Quote: (Originally Posted by Beanie)

Interesting
I would go for dil flush

What Roger was talking about was during manual addition.
When adding O2 manually you sync that so you do it on an exhale.
This way you push the O2 round the system, and you wont get pure O2 in your lungs as might happen in case you inhale at the same time as you add the O2.

In case you go hypoxic you will do a dil flush, cause you need good gas ASAP. But in case you need to bring up pO2, from lowq to set point you can do that manually and faster on the inhale lung. One of the reasons Leon have made it the way it is might be due to his background as a navy diver and using the mk serier of rebreathers. Also an mk15 has only one lung and the O2 is added in there without "any" problems for so many years... So i dont really see a huge problem by having O2 on inhalation, other that it getting stuck in open position. Use it gently and wisely. Dont push the button for many seconds each time and do it on an exhale and you should be ok.

/JOnny

***Beanie*** · 6th April 2006, 09:54

I moved this thread out of DrMike's post as it went a way of topic and it could be doing with being seperate.

Mark Chase · 6th April 2006, 12:48

Quote: (Originally Posted by rogeringebo)

If someone go hypo you can get O2 to him quicker......
In my course we were taught to keep O2 manualy and always exhale while adding O2 so you help to push the fresh gas through the system

This is crazey to me. If i wanted a manual CCR I would buy one

:

I can see a very very small operational window where 02 on the inhale would be an advantage. Someone going hypo due to running SCR at 3m on 6/75 trimix maby but is that going to hapen?

Surley a dill flush is always the first choice unless you want to tox your buddy and the dill is convenienntly on the inhale side on other units.
So the Meg design still sounds odd to me.

ATB

Mark Chase

**UWSojourner** · 6th April 2006, 16:16

The Meg an easily accomodate O2 on the exhale side.

**Steve** · 6th April 2006, 20:33

Quote: (Originally Posted by JonnyB)

Of having the O2 injected in the inhalation lung instead of the exhalation lung.

I see both good points of doing that and bad points...

/Jonny

Hi Jonny,

I have been running my Meg with the manual O2 addition on the exhalation lung for some time now and here are what I see as the pros and cons of having O2 in each lung. As a shore aside, the standard manual O2 hose reaches fine.

O2 into inhalation
Pros

O2 (rich) is on the right.
Removes possible confusion over adding O2 or dil via manual ADV

Cons

Some believe that one only has seconds to live if one inhales high pO2 gas.

O2 into the exhalation
Pros

Better gas mixing before sensors tell you what you are breathing

Cons

Exhalation lung becomes a bit cluttered but it isn't really an issue

6th April 2006, 08:23	#1 (permalink)
JonnyB Johnny The Hatch Current Rebreather/s: MK 15.X Titan Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Megalodon Sport Kiss Classic Kiss Other CCR Other SCR Home Build Join Date: Jan 2005 Location: Sweden (Stockholm)/Cyprus(Ayia Napa) Posts: 962	O2 Injection Point Of having the O2 injected in the inhalation lung instead of the exhalation lung. I see both good points of doing that and bad points... /Jonny __________________ A quote from Crazyduck - In remembering our own Rob Davies. "Outbound flight 777 heavy you are cleared for flight Due west into that warm red Texas sunset You have angels on your wings and divers memories on your six." Rest In Peace http://www.divetekcyprus.com http://www.diveccr.com Last edited by Beanie : 6th April 2006 at 09:53. Reason: Moved from DrMikes Thread on O2 toxicity
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6th April 2006, 08:32	#2 (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: 2,564	O2 Injection Point Quote: (Originally Posted by JonnyB) Of having the O2 injected in the inhalation lung instead of the exhalation lung. I see both good points of doing that and bad points... /Jonny The bad points are obvious, what are the good ones? Again genuine question, I like Megs and if I had 7k laying arround i would get one. 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 Last edited by ROB DAVIE : 7th April 2006 at 03:46.
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6th April 2006, 09:41	#3 (permalink)
rogeringebo Done with bubbles Current Rebreather/s: Pelagian Other Rebreather/s: Megalodon Classic Kiss Pelagian Join Date: Sep 2005 Location: Stockholm Sweden Posts: 697	O2 Injection Point If someone go hypo you can get O2 to him quicker...... In my course we were taught to keep O2 manualy and always exhale while adding O2 so you help to push the fresh gas through the system Last edited by ROB DAVIE : 7th April 2006 at 03:47.
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6th April 2006, 09:44	#4 (permalink)
*Beanie* Close to that red button Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,207	O2 Injection Point Quote: (Originally Posted by rogeringebo) If someone go hypo you can get O2 to him quicker...... In my course we were taught to keep O2 manualy and always exhale while adding O2 so you help to push the fresh gas through the system Interesting I would go for dil flush __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk www.divelife.co.uk Last edited by ROB DAVIE : 7th April 2006 at 03:47.
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6th April 2006, 09:49	#5 (permalink)
rogeringebo Done with bubbles Current Rebreather/s: Pelagian Other Rebreather/s: Megalodon Classic Kiss Pelagian Join Date: Sep 2005 Location: Stockholm Sweden Posts: 697	O2 Injection Point true......depending on depth/mix and so on but I would go for dilflush to... Last edited by ROB DAVIE : 7th April 2006 at 03:47.
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6th April 2006, 09:50	#6 (permalink)
JonnyB Johnny The Hatch Current Rebreather/s: MK 15.X Titan Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Megalodon Sport Kiss Classic Kiss Other CCR Other SCR Home Build Join Date: Jan 2005 Location: Sweden (Stockholm)/Cyprus(Ayia Napa) Posts: 962	O2 Injection Point Quote: (Originally Posted by Beanie) Interesting I would go for dil flush What Roger was talking about was during manual addition. When adding O2 manually you sync that so you do it on an exhale. This way you push the O2 round the system, and you wont get pure O2 in your lungs as might happen in case you inhale at the same time as you add the O2. In case you go hypoxic you will do a dil flush, cause you need good gas ASAP. But in case you need to bring up pO2, from lowq to set point you can do that manually and faster on the inhale lung. One of the reasons Leon have made it the way it is might be due to his background as a navy diver and using the mk serier of rebreathers. Also an mk15 has only one lung and the O2 is added in there without "any" problems for so many years... So i dont really see a huge problem by having O2 on inhalation, other that it getting stuck in open position. Use it gently and wisely. Dont push the button for many seconds each time and do it on an exhale and you should be ok. /JOnny __________________ A quote from Crazyduck - In remembering our own Rob Davies. "Outbound flight 777 heavy you are cleared for flight Due west into that warm red Texas sunset You have angels on your wings and divers memories on your six." Rest In Peace http://www.divetekcyprus.com http://www.diveccr.com Last edited by ROB DAVIE : 7th April 2006 at 03:48.
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6th April 2006, 09:54	#7 (permalink)
*Beanie* Close to that red button Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,207	Re: O2 Injection point I moved this thread out of DrMike's post as it went a way of topic and it could be doing with being seperate. __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk www.divelife.co.uk
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6th April 2006, 12:48	#8 (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: 2,564	O2 Injection Point Quote: (Originally Posted by rogeringebo) If someone go hypo you can get O2 to him quicker...... In my course we were taught to keep O2 manualy and always exhale while adding O2 so you help to push the fresh gas through the system This is crazey to me. If i wanted a manual CCR I would buy one : I can see a very very small operational window where 02 on the inhale would be an advantage. Someone going hypo due to running SCR at 3m on 6/75 trimix maby but is that going to hapen? Surley a dill flush is always the first choice unless you want to tox your buddy and the dill is convenienntly on the inhale side on other units. So the Meg design still sounds odd to me. 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 Last edited by ROB DAVIE : 7th April 2006 at 03:48.
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6th April 2006, 16:16	#9 (permalink)
UWSojourner Pacific Northwest Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Feb 2005 Location: Portland Oregon Posts: 556	Re: O2 Injection point The Meg an easily accomodate O2 on the exhale side.
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6th April 2006, 20:33	#10 (permalink)
Steve Ladies bring a plate Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Classic Kiss MK 15.X Home Build Join Date: Feb 2005 Location: Perth - Australia Posts: 1,103	O2 Injection Point Quote: (Originally Posted by JonnyB) Of having the O2 injected in the inhalation lung instead of the exhalation lung. I see both good points of doing that and bad points... /Jonny Hi Jonny, I have been running my Meg with the manual O2 addition on the exhalation lung for some time now and here are what I see as the pros and cons of having O2 in each lung. As a shore aside, the standard manual O2 hose reaches fine. O2 into inhalation Pros O2 (rich) is on the right. Removes possible confusion over adding O2 or dil via manual ADV Cons Some believe that one only has seconds to live if one inhales high pO2 gas. O2 into the exhalation Pros Better gas mixing before sensors tell you what you are breathing Cons Exhalation lung becomes a bit cluttered but it isn't really an issue __________________ WARNING: I contain occasional coarse language, extreme sexual references, nudity, and adult themes, which may offend some people - Usually churchy types. Last edited by ROB DAVIE : 7th April 2006 at 03:49.
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