Extra gas in the loop?

tibby · 22nd June 2007, 14:28

Hey, this is gotta' be the dummbest question but here it goes.
What happens when you just had a couple of those chilli cheese dogs on the boat between dives and then go Rebreather diving? On OC it's easy (however unpleasant) you just let the reg have it, but on the loop it's got to be pretty nasty to rebreathe all that extra gas and if the flavor doesn't get you I'm sure it can't be good to introduce an unknown diluent in the loop especially when ascending. You're not supposed to breathe off board , right? That would be both sad and funny to get hypoxic on cilli chese dog fumes.
Just another dumb CCR newbe question so go ahead and have fun with it.

Tibby

Freak214 · 22nd June 2007, 15:22

One of my worst Rebreather experiences involved a night dive and a plate of loaded nachos....

When a foreign gas is introduced into the loop it creates a 'slug' that goes round and round. Each pass the slug gets a little more diluted and a little bit longer. On my Dreager I could enjoy a good burp for as long as 3 minutes. The really bad part is by the time it comes around for the first pass you normally have forgotten about it and it is a bit of a surprise!

The method I use now is to let it fly and exhale out of my nose, it tends to burn a bit but its better then getting the slug over and over again.

JohnL

**nigelh** · 22nd June 2007, 15:59

OK. I'm looking at a scrubber full of 'lime and thinking "I don't believe this".
A 'taste' in the gas that makes it way through that block of kitty-litter?
A smell I might believe, although that's pushing it and anyway your nose if out of loop, but a taste?

You are kidding me.

tibby · 22nd June 2007, 16:15

Quote: (Originally Posted by nigelh)

OK. I'm looking at a scrubber full of 'lime and thinking "I don't believe this".
A 'taste' in the gas that makes it way through that block of kitty-litter?
A smell I might believe, although that's pushing it and anyway your nose if out of loop, but a taste?

You are kidding me.

My intention was to ask, not state a fact. I haven't yet started Rebreather diving so I wouldn't know but my Meg is on order, I guess I'll find out soon.
Cheers,
Tibby

**nigelh** · 22nd June 2007, 17:28

Quote: (Originally Posted by tibby)

My intention was to ask,

Maybe it's just Drägers.

I always thought semi closed was a silly idea.

chunter · 23rd June 2007, 01:59

Quote: (Originally Posted by tibby)

Hey, this is gotta' be the dummbest question but here it goes.
What happens when you just had a couple of those chilli cheese dogs on the boat between dives and then go Rebreather diving? On OC it's easy (however unpleasant) you just let the reg have it, but on the loop it's got to be pretty nasty to rebreathe all that extra gas and if the flavor doesn't get you I'm sure it can't be good to introduce an unknown diluent in the loop especially when ascending. You're not supposed to breathe off board , right? That would be both sad and funny to get hypoxic on cilli chese dog fumes.
Just another dumb CCR newbe question so go ahead and have fun with it.

Tibby

Perhaps this explains some of the mysterious rebreather deaths.

I don't know if it makes any difference, but I tend to burp into my mouth, then push it out my nose with my tongue. Very advanced technique.

I always wondered about the guy who made a rebreather using his drysuit as a counterlung. What does he do when the gas comes out the other end?

Good luck.

**wedivebc** · 23rd June 2007, 02:37

I read about a Rebreather design where the guy wanted to incorporate the counterlung into his drysuit. Now that would have been way worse from an off-gassing point of view

OceanOpportunity · 23rd June 2007, 02:40

better to burp and taste it than fart and waste it.

RonMicjan · 23rd June 2007, 03:08

No Worries Tibby, you will learn a technique called a loop flush, perfect for situations like stomach offgassing into the loop.

for the guy with the drysuit as part of the loop, would it still be called a loop flush, same technique, different results? Similar to a toilet flush?

If you plumbed O2 into your drysuit, after eating nachos, would the suit spontanously combust? wasnt there a thread on this a while ago?

If olive oil is made from olives, and fish oil is made from fishes, what is baby oil made from?

i think i need to go rent a movie...

***caveseeker7*** · 23rd June 2007, 08:59

Quote: (Originally Posted by OceanOpportunity)

better to burp and taste it than fart and waste it.

I see, you have experience with the Flatluence Assited Rebreather Technology.

22nd June 2007, 14:28	#1 (permalink)
tibby untitled Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: May 2007 Location: Salt Lake City, UT Posts: 326	Extra gas in the loop? Hey, this is gotta' be the dummbest question but here it goes. What happens when you just had a couple of those chilli cheese dogs on the boat between dives and then go Rebreather diving? On OC it's easy (however unpleasant) you just let the reg have it, but on the loop it's got to be pretty nasty to rebreathe all that extra gas and if the flavor doesn't get you I'm sure it can't be good to introduce an unknown diluent in the loop especially when ascending. You're not supposed to breathe off board , right? That would be both sad and funny to get hypoxic on cilli chese dog fumes. Just another dumb CCR newbe question so go ahead and have fun with it. Tibby
(Offline)

22nd June 2007, 15:22	#2 (permalink)
Freak214 New Member Current Rebreather/s: Megalodon Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: Jun 2005 Location: USA, Virginia Posts: 44	Re: Extra gas in the loop? One of my worst Rebreather experiences involved a night dive and a plate of loaded nachos.... When a foreign gas is introduced into the loop it creates a 'slug' that goes round and round. Each pass the slug gets a little more diluted and a little bit longer. On my Dreager I could enjoy a good burp for as long as 3 minutes. The really bad part is by the time it comes around for the first pass you normally have forgotten about it and it is a bit of a surprise! The method I use now is to let it fly and exhale out of my nose, it tends to burn a bit but its better then getting the slug over and over again. JohnL
(Offline)

22nd June 2007, 15:59	#3 (permalink)
nigelh New Member Current Rebreather/s: Inspiration Vision Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Mar 2005 Location: Brighton, Sussex, UK Posts: 784	Re: Extra gas in the loop? OK. I'm looking at a scrubber full of 'lime and thinking "I don't believe this". A 'taste' in the gas that makes it way through that block of kitty-litter? A smell I might believe, although that's pushing it and anyway your nose if out of loop, but a taste? You are kidding me. __________________ nigelh
(Online)

22nd June 2007, 16:15	#4 (permalink)
tibby untitled Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: May 2007 Location: Salt Lake City, UT Posts: 326	Re: Extra gas in the loop? Quote: (Originally Posted by nigelh) OK. I'm looking at a scrubber full of 'lime and thinking "I don't believe this". A 'taste' in the gas that makes it way through that block of kitty-litter? A smell I might believe, although that's pushing it and anyway your nose if out of loop, but a taste? You are kidding me. My intention was to ask, not state a fact. I haven't yet started Rebreather diving so I wouldn't know but my Meg is on order, I guess I'll find out soon. Cheers, Tibby
(Offline)

22nd June 2007, 17:28	#5 (permalink)
nigelh New Member Current Rebreather/s: Inspiration Vision Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Mar 2005 Location: Brighton, Sussex, UK Posts: 784	Re: Extra gas in the loop? Quote: (Originally Posted by tibby) My intention was to ask, Maybe it's just Drägers. I always thought semi closed was a silly idea. __________________ nigelh
(Online)

23rd June 2007, 01:59	#6 (permalink)
chunter I like diving Current Rebreather/s: Sport Kiss MK 15.X Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Classic Kiss Join Date: Jul 2006 Location: Honolulu Posts: 450	Re: Extra gas in the loop? Quote: (Originally Posted by tibby) Hey, this is gotta' be the dummbest question but here it goes. What happens when you just had a couple of those chilli cheese dogs on the boat between dives and then go Rebreather diving? On OC it's easy (however unpleasant) you just let the reg have it, but on the loop it's got to be pretty nasty to rebreathe all that extra gas and if the flavor doesn't get you I'm sure it can't be good to introduce an unknown diluent in the loop especially when ascending. You're not supposed to breathe off board , right? That would be both sad and funny to get hypoxic on cilli chese dog fumes. Just another dumb CCR newbe question so go ahead and have fun with it. Tibby Perhaps this explains some of the mysterious rebreather deaths. I don't know if it makes any difference, but I tend to burp into my mouth, then push it out my nose with my tongue. Very advanced technique. I always wondered about the guy who made a rebreather using his drysuit as a counterlung. What does he do when the gas comes out the other end? Good luck. __________________ "Foolish consistency is the hobgoblin of little minds." - Emerson "Hobgoblin is a cool word." - Charlie
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23rd June 2007, 02:37	#7 (permalink)
wedivebc FIGJAM Current Rebreather/s: Megalodon Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Other CCR Join Date: Feb 2005 Location: Vancouver Island BC Canada Posts: 1,336	Re: Extra gas in the loop? I read about a Rebreather design where the guy wanted to incorporate the counterlung into his drysuit. Now that would have been way worse from an off-gassing point of view __________________ Cheers, Dave.... Man is the only animal burdened with the knowledge he will eventually die
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23rd June 2007, 02:40	#8 (permalink)
OceanOpportunity for a world of water Current Rebreather/s: Other CCR Dolphin Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Other CCR Dolphin Home Build Join Date: Nov 2006 Location: Providence, RI USA Posts: 465	Re: Extra gas in the loop? better to burp and taste it than fart and waste it. __________________ Michael Lombardi Oceans of Opportunity www.oceanopportunity.com Gear Reviewer, The Summit Journal exploration & scientific diving resources www.explorationtechnologiesgroup.com
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23rd June 2007, 03:08	#9 (permalink)
RonMicjan Cap Ron scourge of the NW Current Rebreather/s: Megalodon Dolphin Home Build Other Rebreather/s: Sport Kiss Classic Kiss Dolphin Home Build Join Date: Feb 2005 Location: Cape Disapointment, The Graveyard of the Pacific Posts: 1,081	Re: Extra gas in the loop? No Worries Tibby, you will learn a technique called a loop flush, perfect for situations like stomach offgassing into the loop. for the guy with the drysuit as part of the loop, would it still be called a loop flush, same technique, different results? Similar to a toilet flush? If you plumbed O2 into your drysuit, after eating nachos, would the suit spontanously combust? wasnt there a thread on this a while ago? If olive oil is made from olives, and fish oil is made from fishes, what is baby oil made from? i think i need to go rent a movie... __________________ Ron "Life is pain princess, anyone who tells you different, is selling something", The Dread Pirate Wesley. www.tmishop.com Diving bits etc.
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23rd June 2007, 08:59	#10 (permalink)
*caveseeker7* Who loves ya, baby Current Rebreather/s: Sport Kiss Other Rebreather/s: Prism Topaz Join Date: Jan 2005 Location: Too far from Neverland Posts: 5,281	Re: Extra gas in the loop? Quote: (Originally Posted by OceanOpportunity) better to burp and taste it than fart and waste it. I see, you have experience with the Flatluence Assited Rebreather Technology. __________________ Cheers Stefan Be Water, My Friend - Bruce Lee Sponsor Lou in Race For Life!
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