Belching and it's effect on loop gas %

DZLHED · 10th February 2006, 02:23

I hope this topic is not as absurd as it sounds. The other day I was doing a lovely YBOD dive in about 30m when out of nowhere a fairly impressive belch made it's way in to my loop. My normal procedure for this event is to expel the gas out my nose but this one just snuck by the ol' safety valve. Upon pondering my situation I opted to purge the loop. I suppose my question is are there any factors (time of exposure or depth) that could make make this event hazardous in any way. My apologies if any of this seems naive or ridiculous.

Also curious as to everyones (anyones) preference in dive insurance. In the rebreather community is DAN the general consensus?

just wondering...

dantheman · 10th February 2006, 03:27

Quote: (Originally Posted by DZLHED)

Also curious as to everyones (anyones) preference in dive insurance. In the rebreather community is DAN the general consensus?
just wondering...

My wife and I have DAN. Not that we've used it.

And I'd have flushed the loop too.
Definitely.

--dan

**Steve** · 10th February 2006, 06:02

Quote: (Originally Posted by DZLHED)

I suppose my question is are there any factors (time of exposure or depth) that could make make this event hazardous in any way. My apologies if any of this seems naive or ridiculous.

just wondering...

This has happened to me a lot. I got a batch of dusty sorb that in spite of my best efforts still got dust in the scrubber. Sometimes it would make me cough at depth and in doing so a bit of gas would make its way into my stomach. On land you don't notice, but when that 100ml of gas has entered your stomach at depth it has a habit of expanding when you ascend.

It has to go somewhere.

**nigelh** · 10th February 2006, 06:32

Quote: (Originally Posted by DZLHED)

...when out of nowhere a fairly impressive belch made it's way in to my loop.

I do that sometimes. I ignore it. It's swallowed air and anything that can make its way up through the scrubber stack is filtered enough to be breathable.

Insurance? I'm in the UK and use 'Divemaster'. I have their general travel option because they will take my UK Sports Diver Medical cert as fit to travel when a lot of companies want all sorts of disclaimers with my medical history. Also I have kit insurance.

n2diving · 10th February 2006, 12:53

It can be much worse depending on what you ate last.... Tom Mount tells the story of eating some firey hot Thai food and then diving.... he belched in the loop.... and can you imagine what it felt like to have to breathe that into your lungs? Yet another reason to keep those dil flush skills tuned up

KevDD · 10th February 2006, 13:43

As some people on the internet clearly talk through their ass, they should start a thread of their own asking about Farting and Loop Volume.

n2diving · 10th February 2006, 13:46

If you were to release such 'biologic' source gas into your drysuit... would that affect buoyancy and trim?

edster · 10th February 2006, 14:55

Quote: (Originally Posted by n2diving)

If you were to release such 'biologic' source gas into your drysuit... would that affect buoyancy and trim?

I always think that the suit is just a 'counterlung' in that scenario

**nigelh** · 10th February 2006, 14:58

Quote: (Originally Posted by edster)

I always think that the suit is just a 'counterlung' in that scenario

Yup.
Moving gas from inside the body to outside shouldn't make a difference.
Now if you have an autodump however....

edster · 10th February 2006, 15:11

Quote: (Originally Posted by nigelh)

Yup.
Moving gas from inside the body to outside shouldn't make a difference.
Now if you have an autodump however....

Now its a question of the volume you produce and the pressure differential you have created....

10th February 2006, 02:23	#1 (permalink)
DZLHED Swimmin' upstream Current Rebreather/s: MK 15.X Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Join Date: Jun 2005 Location: Maui County, Hawaii Posts: 101	Belching and it's effect on loop gas % I hope this topic is not as absurd as it sounds. The other day I was doing a lovely YBOD dive in about 30m when out of nowhere a fairly impressive belch made it's way in to my loop. My normal procedure for this event is to expel the gas out my nose but this one just snuck by the ol' safety valve. Upon pondering my situation I opted to purge the loop. I suppose my question is are there any factors (time of exposure or depth) that could make make this event hazardous in any way. My apologies if any of this seems naive or ridiculous. Also curious as to everyones (anyones) preference in dive insurance. In the rebreather community is DAN the general consensus? just wondering... __________________ Aloha, Dieselhead To err is Human... to ccr, Divine. www.NorthShoreExplorers.com
(Offline)

10th February 2006, 03:27	#2 (permalink)
dantheman Emoticonoclast Current Rebreather/s: Sport Kiss rEvo Other Rebreather/s: Classic Kiss rEvo Join Date: May 2005 Location: NorthEast USA Posts: 393	Re: Belching and it's effect on loop gas % Quote: (Originally Posted by DZLHED) Also curious as to everyones (anyones) preference in dive insurance. In the rebreather community is DAN the general consensus? just wondering... My wife and I have DAN. Not that we've used it. And I'd have flushed the loop too. Definitely. --dan
(Offline)

10th February 2006, 06:02	#3 (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: 1,062	Re: Belching and it's effect on loop gas % Quote: (Originally Posted by DZLHED) I suppose my question is are there any factors (time of exposure or depth) that could make make this event hazardous in any way. My apologies if any of this seems naive or ridiculous. just wondering... This has happened to me a lot. I got a batch of dusty sorb that in spite of my best efforts still got dust in the scrubber. Sometimes it would make me cough at depth and in doing so a bit of gas would make its way into my stomach. On land you don't notice, but when that 100ml of gas has entered your stomach at depth it has a habit of expanding when you ascend. It has to go somewhere. __________________ WARNING: I contain occasional coarse language, extreme sexual references, nudity, and adult themes, which may offend some people - Usually churchy types.
(Online)

10th February 2006, 06:32	#4 (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: 790	Re: Belching and it's effect on loop gas % Quote: (Originally Posted by DZLHED) ...when out of nowhere a fairly impressive belch made it's way in to my loop. I do that sometimes. I ignore it. It's swallowed air and anything that can make its way up through the scrubber stack is filtered enough to be breathable. Insurance? I'm in the UK and use 'Divemaster'. I have their general travel option because they will take my UK Sports Diver Medical cert as fit to travel when a lot of companies want all sorts of disclaimers with my medical history. Also I have kit insurance. __________________ nigelh Last edited by nigelh : 10th February 2006 at 14:59. Reason: spelling...
(Offline)

10th February 2006, 12:53	#5 (permalink)
n2diving Custom Title Allowed! Current Rebreather/s: Optima Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Feb 2005 Location: Florida, USA Posts: 270	Re: Belching and it's effect on loop gas % It can be much worse depending on what you ate last.... Tom Mount tells the story of eating some firey hot Thai food and then diving.... he belched in the loop.... and can you imagine what it felt like to have to breathe that into your lungs? Yet another reason to keep those dil flush skills tuned up
(Offline)

10th February 2006, 13:43	#6 (permalink)
KevDD Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Oct 2005 Location: Dublin, Ireland Posts: 105	Re: Belching and it's effect on loop gas % As some people on the internet clearly talk through their ass, they should start a thread of their own asking about Farting and Loop Volume.
(Offline)

10th February 2006, 13:46	#7 (permalink)
n2diving Custom Title Allowed! Current Rebreather/s: Optima Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Feb 2005 Location: Florida, USA Posts: 270	Re: Belching and it's effect on loop gas % If you were to release such 'biologic' source gas into your drysuit... would that affect buoyancy and trim?
(Offline)

10th February 2006, 14:55	#8 (permalink)
edster Mr Cheesebox Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Apr 2005 Location: Avening UK Posts: 146	Re: Belching and it's effect on loop gas % Quote: (Originally Posted by n2diving) If you were to release such 'biologic' source gas into your drysuit... would that affect buoyancy and trim? I always think that the suit is just a 'counterlung' in that scenario __________________
(Offline)

10th February 2006, 14:58	#9 (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: 790	Re: Belching and it's effect on loop gas % Quote: (Originally Posted by edster) I always think that the suit is just a 'counterlung' in that scenario Yup. Moving gas from inside the body to outside shouldn't make a difference. Now if you have an autodump however.... __________________ nigelh
(Offline)

10th February 2006, 15:11	#10 (permalink)
edster Mr Cheesebox Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Apr 2005 Location: Avening UK Posts: 146	Re: Belching and it's effect on loop gas % Quote: (Originally Posted by nigelh) Yup. Moving gas from inside the body to outside shouldn't make a difference. Now if you have an autodump however.... Now its a question of the volume you produce and the pressure differential you have created.... __________________
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode