Access to on-board O2

alexasigno · September 23rd, 2012, 08:17 AM

Hi I was wondering if/how you have setup access to your on-board O2?

It seems that a 2nd reg and flow stop connected directly to the O2 first stage is the best idea.

But was wondering about the pros and cons of a whip and flow stop which could be connected directly to the existing BOV with some additional QDs.

It'd be great to hear your thoughts on both ways.

Cheers
Alex

***tecdiverdude*** · September 23rd, 2012, 09:50 AM

It here ate a few threads on here abou this.. I use a cheater.. It's a second stage with a power inflator adapter.. Made by omniswivel
Look on Dive Gear Express | Equipment for Experienced Divers
I keep it in my pocket

Dave Sutton · September 23rd, 2012, 03:04 PM

Quote: (Originally Posted by tecdiverdude)

It here ate a few threads on here abou this.. I use a cheater.. It's a second stage with a power inflator adapter.. Made by omniswivel
Look on Dive Gear Express | Equipment for Experienced Divers
I keep it in my pocket

More or less what I do, I always carried a second stage with a CEJN quick disconnect attached (Ocean Reef full face mask fitting to be exact). Now wit the Meg, I have an 02 power inflator hose to the manual add valve anyhow, so using a power inflator adapter on a second stage makes sense as long as it's only going to be used shallow and for low workload. Depth and higher workloads will cause them to be unbreathable for flow reasons pretty quickly. One of these shared in the buddy team is a good tool. Jitka carries it, and I carry a six foot "male-female" extension hose that either of us can connect to our 02 or offboard gas lines and then pass to the other diver for 02 sharing. Between the two tools we are pretty confident that we can solve most problems with ease.

Dave

.

alexasigno · September 23rd, 2012, 11:47 PM

Thanks for the replies. Hmm decisions, it hadn't entered my head about having just a reg which attached directly to the manual add hose. I didn't think the flow would be enough to breath from. Do you change the connector at the manual add too? Or is it enough to breath from at 6m? I understand that it's only a last case resort and not too bothered if it's not a great breathe.

**dmainou** · September 23rd, 2012, 11:57 PM

Alex,

I simply added a l.p. hose to the o2 side. A flow stopper and a reg.

It's simple and works.

With the cheater you'll need to remember to put it in a pocket and will need to add a lanyard or it may become useless as it sinks.

I like the cheater as you could plug it to the dry suit if required but you'll have to replace all the connectors with high flow versions.

Sent from my GT-I9300 using Tapatalk 2

Andy Del · September 24th, 2012, 01:56 AM

I've also got a simple hose and second stage plumbed in from the O2 reg. On my KISS it used to be bungied around my neck, now it lies alongside the O2 HP hose on the wing: grab and pull, the reg is ready for use once the flow valve is opened.

I like this setup, mainly due to it being deployable without having to put too much focus into the task. Either way, a cheater or a dedicated reg, it's far better to have than not!

cheers

Andy

Dave Sutton · September 24th, 2012, 02:33 AM

Just a note: For 02 access, you do NOT need a high flow quick disconnect. You can use the standard low pressure inflator hose connection. This is adequate for low workload, shallow open circuit use. 6 meters on deco is the starting place for 02 use... keep things simple.

Years ago I did something different on my CIS Lunar Mk-5P that also worked well: I plumbed my 02 to a combination low pressure inflator and breathing regulator (a Zeagle that was made my Apeks), and it worked fine. I NEVER inflate my wings with a rebreather, it's just an emergency drysuit backup, so it did not impact my normal 02 use, and it left a very clean way to get open circuit access to the 02 in a bailout.

Dave

.

***tecdiverdude*** · September 24th, 2012, 03:39 AM

I have tested the low flow connector to 30m ( not on o2) and it breathes fine .. Don't be fooled..the holes where the gas comes from in your second stage isn't that big

***Janos*** · September 24th, 2012, 10:36 PM

I've been thinking about a simple cheater (just plugging into the simple LP hose) but what are people using for the male end of the hose

(I've also been tempted by trying to breath from an air gun - I can breathe from a naked tank valve ok).

Janos

divingtactics · September 25th, 2012, 12:27 AM

Quote: (Originally Posted by tecdiverdude)

It here ate a few threads on here abou this.. I use a cheater.. It's a second stage with a power inflator adapter.. Made by omniswivel
Look on Dive Gear Express | Equipment for Experienced Divers
I keep it in my pocket

Rob, is it the Adapter, LP 2nd Stage: 9/16-Inch FI = BC Inflator QD Post as shown here: OmniSwivel Brand Adapters and Special Fittings - Dive Gear Express

If so, wouldn't the water get into the insides of the reg where breathing gas is only supposed to go when it is sitting in your pocket? This would mean that it would breathe a little wet for the first couple of breaths. Or am I understanding this wrong.

September 23rd, 2012, 08:17 AM	#1 (permalink)
alexasigno New Member Join Date: Apr 2012 Location: Sydney Posts: 54 Thanks: 2 Thanked 8 Times in 6 Posts	Access to on-board O2 Hi I was wondering if/how you have setup access to your on-board O2? It seems that a 2nd reg and flow stop connected directly to the O2 first stage is the best idea. But was wondering about the pros and cons of a whip and flow stop which could be connected directly to the existing BOV with some additional QDs. It'd be great to hear your thoughts on both ways. Cheers Alex
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September 23rd, 2012, 09:50 AM	#2 (permalink)
*tecdiverdude* Southern Moderation Join Date: Mar 2012 Location: Australia Posts: 424 Thanks: 58 Thanked 30 Times in 17 Posts	It here ate a few threads on here abou this.. I use a cheater.. It's a second stage with a power inflator adapter.. Made by omniswivel Look on Dive Gear Express \| Equipment for Experienced Divers I keep it in my pocket __________________ "DREAM as though you'll live forever LIVE as though you'll die tomorrow"
(Online)

September 23rd, 2012, 03:04 PM	#3 (permalink)
Dave Sutton Banned Join Date: Mar 2012 Location: Union Beach, New Jersey Posts: 1,281 Thanks: 73 Thanked 189 Times in 103 Posts	Quote: (Originally Posted by tecdiverdude) It here ate a few threads on here abou this.. I use a cheater.. It's a second stage with a power inflator adapter.. Made by omniswivel Look on Dive Gear Express \| Equipment for Experienced Divers I keep it in my pocket More or less what I do, I always carried a second stage with a CEJN quick disconnect attached (Ocean Reef full face mask fitting to be exact). Now wit the Meg, I have an 02 power inflator hose to the manual add valve anyhow, so using a power inflator adapter on a second stage makes sense as long as it's only going to be used shallow and for low workload. Depth and higher workloads will cause them to be unbreathable for flow reasons pretty quickly. One of these shared in the buddy team is a good tool. Jitka carries it, and I carry a six foot "male-female" extension hose that either of us can connect to our 02 or offboard gas lines and then pass to the other diver for 02 sharing. Between the two tools we are pretty confident that we can solve most problems with ease. Dave .
(Offline)

September 23rd, 2012, 11:47 PM	#4 (permalink)
alexasigno New Member Join Date: Apr 2012 Location: Sydney Posts: 54 Thanks: 2 Thanked 8 Times in 6 Posts	Thanks for the replies. Hmm decisions, it hadn't entered my head about having just a reg which attached directly to the manual add hose. I didn't think the flow would be enough to breath from. Do you change the connector at the manual add too? Or is it enough to breath from at 6m? I understand that it's only a last case resort and not too bothered if it's not a great breathe.
(Offline)

September 23rd, 2012, 11:57 PM	#5 (permalink)
dmainou Supporting Member Join Date: Mar 2012 Location: Sydney Posts: 177 Thanks: 20 Thanked 14 Times in 13 Posts	Alex, I simply added a l.p. hose to the o2 side. A flow stopper and a reg. It's simple and works. With the cheater you'll need to remember to put it in a pocket and will need to add a lanyard or it may become useless as it sinks. I like the cheater as you could plug it to the dry suit if required but you'll have to replace all the connectors with high flow versions. Sent from my GT-I9300 using Tapatalk 2
(Online)

September 24th, 2012, 01:56 AM	#6 (permalink)
Andy Del still causing trouble! Join Date: Mar 2012 Location: Still in Sunny Sydney Posts: 140 Thanks: 22 Thanked 35 Times in 17 Posts	I've also got a simple hose and second stage plumbed in from the O2 reg. On my KISS it used to be bungied around my neck, now it lies alongside the O2 HP hose on the wing: grab and pull, the reg is ready for use once the flow valve is opened. I like this setup, mainly due to it being deployable without having to put too much focus into the task. Either way, a cheater or a dedicated reg, it's far better to have than not! cheers Andy __________________ Yellow - the signal colour of greatness.
(Online)

September 24th, 2012, 02:33 AM	#7 (permalink)
Dave Sutton Banned Join Date: Mar 2012 Location: Union Beach, New Jersey Posts: 1,281 Thanks: 73 Thanked 189 Times in 103 Posts	Just a note: For 02 access, you do NOT need a high flow quick disconnect. You can use the standard low pressure inflator hose connection. This is adequate for low workload, shallow open circuit use. 6 meters on deco is the starting place for 02 use... keep things simple. Years ago I did something different on my CIS Lunar Mk-5P that also worked well: I plumbed my 02 to a combination low pressure inflator and breathing regulator (a Zeagle that was made my Apeks), and it worked fine. I NEVER inflate my wings with a rebreather, it's just an emergency drysuit backup, so it did not impact my normal 02 use, and it left a very clean way to get open circuit access to the 02 in a bailout. Dave .
(Offline)

September 24th, 2012, 03:39 AM	#8 (permalink)
*tecdiverdude* Southern Moderation Join Date: Mar 2012 Location: Australia Posts: 424 Thanks: 58 Thanked 30 Times in 17 Posts	I have tested the low flow connector to 30m ( not on o2) and it breathes fine .. Don't be fooled..the holes where the gas comes from in your second stage isn't that big __________________ "DREAM as though you'll live forever LIVE as though you'll die tomorrow"
(Online)

September 24th, 2012, 10:36 PM	#9 (permalink)
*Janos* "Two sheds" Join Date: Mar 2012 Location: Work in Westminster, live in Surrey Posts: 334 Thanks: 0 Thanked 32 Times in 23 Posts	I've been thinking about a simple cheater (just plugging into the simple LP hose) but what are people using for the male end of the hose (I've also been tempted by trying to breath from an air gun - I can breathe from a naked tank valve ok). Janos __________________ You can lead a horse to water but you can't climb a ladder with a large bell in both hands - Vic Reeves Hellfins - a friendly London dive club My music video: Dive the UK, cos that's the way it is. Huh!
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September 25th, 2012, 12:27 AM	#10 (permalink)
divingtactics Serious Swagelok Addict Join Date: Mar 2012 Location: Melbourne Australia Posts: 156 Thanks: 17 Thanked 16 Times in 15 Posts	Quote: (Originally Posted by tecdiverdude) It here ate a few threads on here abou this.. I use a cheater.. It's a second stage with a power inflator adapter.. Made by omniswivel Look on Dive Gear Express \| Equipment for Experienced Divers I keep it in my pocket Rob, is it the Adapter, LP 2nd Stage: 9/16-Inch FI = BC Inflator QD Post as shown here: OmniSwivel Brand Adapters and Special Fittings - Dive Gear Express If so, wouldn't the water get into the insides of the reg where breathing gas is only supposed to go when it is sitting in your pocket? This would mean that it would breathe a little wet for the first couple of breaths. Or am I understanding this wrong.
(Offline)