Excessive counterlung volume on my MEG

depth · 25th July 2007, 09:03

Hi Phil

No, I cut those of my self ;-) I didn't need them..

Christian

Quote: (Originally Posted by Phil)

Christian,

Thanks for the pictures from what I can see they removed the inner side velcro straps and only kept the bottom one. Is this correct?

I'll wait for your diving report before I get my sewing machine running

Cheers,

webhead · 25th July 2007, 16:15

Quote: (Originally Posted by decoweenie)

Some thoughts...

Does the nylon CL have inner plastic CL bladder like the Inspiration, or is it a single layer ?

If inner plastic CL is inside, you could also punch holes and zip ties the side to get the exact expansion size you want. I do this on the BMCL system...

If single layer, you could also glue instead of sew and save on shipping to ISC.

Single layer. The material has a shiny surface on the inside (i.e. the waterproofing). I haven't removed the trim material to confirm but I'd guess that the pieces are "welded" together inside the edge stitching like a SMB or lift bag.

An interesting idea would be to make the same CL with one seam on the back and eliminate the trim material on either side (i.e. end up with a seam down the back only). May not reduce excess volume but would really clean up the chest area and make them more like the neo CLs.

jkeep · 26th July 2007, 21:44

Have you tried the inspo, now they are big, just like 2 air ships haha

webhead · 26th July 2007, 22:52

Had an Inspo for years. And a constant rash on my neck from the CLs. Learned to dive with a fleece hood pulled down around my neck. Inspo is a good unit but sometimes just rubs you the wrong way.

mattmexico · 27th July 2007, 22:25

yo

very nice ... very nice .. I might even find some one down here ...

very cool and very slick solution

saludos
Matt

PaulTG2 · 29th July 2007, 22:33

Hello,

From the photos it looks like you could also run velcro along the back of the CL with a flaps of opposing velcro sewn into the top and just adjust the flap to whatever CL volume you want. hmm.......

-p

scubamartin · 14th January 2008, 21:41

Hi,

For those of you who had their CL sewn, what are the practical benifits of this modification. I can think of a few but would like to know from real experience

Thanks a lot

pattimegdiver · 15th January 2008, 02:37

I like to have my counterlungs to the point that I have only 2 to 2.5 breaths and having the counterlungs sewn down achieves this, along with them being more streamline to my body.

Quote: (Originally Posted by scubamartin)

Hi,

For those of you who had their CL sewn, what are the practical benifits of this modification. I can think of a few but would like to know from real experience

Thanks a lot

Abbo · 15th January 2008, 03:35

I have huge lungs, so this is not really a problem for me. Still, I'm intrigued: is there really that much to be gained from getting your CLs sewn up?

Won't small CLs using a larger portion of their capacity stand out proud from the body more? Properly clippped off at the bottom, they shouldn't really be flapping around.

And I feel some comfort in knowing that I can use the CLs for added buoyancy in a pinch.

Since water gets directed to the CLs, to help protect us against caustic cocktails in the Meg, I find some small comfort in knowing that there's plenty of space for that water to go.

Finally, for an average-sized male (which I'm not) tidal volume is 0.5 litres, against a total lung capacity of 6.0 litres and forced vital capacity of 4.8 litres. That must mean that big breaths in an emergency are far larger than typical breaths. Take a look at this and tell me what you think:
Lung volumes - Wikipedia, the free encyclopedia

As ever, I have no axe to grind: I merely humbly seek knowledge

tibby · 15th January 2008, 14:28

Quote: (Originally Posted by Abbo)

I have huge lungs, so this is not really a problem for me. Still, I'm intrigued: is there really that much to be gained from getting your CLs sewn up?

Won't small CLs using a larger portion of their capacity stand out proud from the body more? Properly clippped off at the bottom, they shouldn't really be flapping around.

And I feel some comfort in knowing that I can use the CLs for added buoyancy in a pinch.

Since water gets directed to the CLs, to help protect us against caustic cocktails in the Meg, I find some small comfort in knowing that there's plenty of space for that water to go.

Finally, for an average-sized male (which I'm not) tidal volume is 0.5 litres, against a total lung capacity of 6.0 litres and forced vital capacity of 4.8 litres. That must mean that big breaths in an emergency are far larger than typical breaths. Take a look at this and tell me what you think:
Lung volumes - Wikipedia, the free encyclopedia

As ever, I have no axe to grind: I merely humbly seek knowledge

That's why I think this is a better option http://www.rebreatherworld.com/megal...g-c-l-mod.html
It allows you to revert to the full size CL in about one second by simply pulling the SPG hoses up separating the velcro.
Tibby

25th July 2007, 09:03	#21 (permalink)
depth Custom Title Allowed! Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2006 Location: Denmark Posts: 145	Re: Excessive counterlung volume on my MEG Hi Phil No, I cut those of my self ;-) I didn't need them.. Christian Quote: (Originally Posted by Phil) Christian, Thanks for the pictures from what I can see they removed the inner side velcro straps and only kept the bottom one. Is this correct? I'll wait for your diving report before I get my sewing machine running Cheers, __________________ I am not qualified to make my own meg batteries!!! I am not qualified to make my own meg batteries!!! I am not qualified to make my own meg batteries!!! I am not qualified to make my own meg batteries!!! I am not.............
(Offline)

25th July 2007, 16:15	#22 (permalink)
webhead Earning the green stuff.. Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Megalodon Join Date: Mar 2006 Location: East central Florida Posts: 283	Re: Excessive counterlung volume on my MEG Quote: (Originally Posted by decoweenie) Some thoughts... Does the nylon CL have inner plastic CL bladder like the Inspiration, or is it a single layer ? If inner plastic CL is inside, you could also punch holes and zip ties the side to get the exact expansion size you want. I do this on the BMCL system... If single layer, you could also glue instead of sew and save on shipping to ISC. Single layer. The material has a shiny surface on the inside (i.e. the waterproofing). I haven't removed the trim material to confirm but I'd guess that the pieces are "welded" together inside the edge stitching like a SMB or lift bag. An interesting idea would be to make the same CL with one seam on the back and eliminate the trim material on either side (i.e. end up with a seam down the back only). May not reduce excess volume but would really clean up the chest area and make them more like the neo CLs. __________________ "These are not the droids you are looking for.... move along" - Obi-Wan Kenobi
(Offline)

26th July 2007, 21:44	#23 (permalink)
jkeep New Member Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Inspiration Vision Megalodon Join Date: Feb 2007 Location: UK Posts: 54	Re: Excessive counterlung volume on my MEG Have you tried the inspo, now they are big, just like 2 air ships haha __________________ Practice, Practice, Practice And Become A Master Of Technique .............
(Offline)

26th July 2007, 22:52	#24 (permalink)
webhead Earning the green stuff.. Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Megalodon Join Date: Mar 2006 Location: East central Florida Posts: 283	Re: Excessive counterlung volume on my MEG Had an Inspo for years. And a constant rash on my neck from the CLs. Learned to dive with a fleece hood pulled down around my neck. Inspo is a good unit but sometimes just rubs you the wrong way. __________________ "These are not the droids you are looking for.... move along" - Obi-Wan Kenobi
(Offline)

27th July 2007, 22:25	#25 (permalink)
mattmexico Rebreather World Writer Current Rebreather/s: Megalodon Classic Kiss Optima RB80 / Clone Other Rebreather/s: Inspiration Classic Evolution Prism Topaz Sport Kiss RB80 / Clone Join Date: Aug 2005 Location: Mexico, Q.Roo, Playa del Carmen Posts: 736	Re: Excessive counterlung volume on my MEG yo very nice ... very nice .. I might even find some one down here ... very cool and very slick solution saludos Matt __________________ N 20' 37.617' W 87' 04.693' www.andreaswmatthes.com
(Offline)

29th July 2007, 22:33	#26 (permalink)
PaulTG2 Custom Title Allowed! Current Rebreather/s: Megalodon Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Mar 2006 Location: Virginia, USA Posts: 346	Re: Excessive counterlung volume on my MEG Hello, From the photos it looks like you could also run velcro along the back of the CL with a flaps of opposing velcro sewn into the top and just adjust the flap to whatever CL volume you want. hmm....... -p
(Offline)

14th January 2008, 21:41	#27 (permalink)
scubamartin New Member Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Feb 2006 Location: Montreal Posts: 19	Re: Excessive counterlung volume on my MEG Hi, For those of you who had their CL sewn, what are the practical benifits of this modification. I can think of a few but would like to know from real experience Thanks a lot
(Offline)

15th January 2008, 02:37	#28 (permalink)
pattimegdiver #1 COPIS Mini Meg Girl Current Rebreather/s: Megalodon Sport Kiss Other Rebreather/s: Join Date: Nov 2005 Location: Portland Oregon Posts: 305	Re: Excessive counterlung volume on my MEG I like to have my counterlungs to the point that I have only 2 to 2.5 breaths and having the counterlungs sewn down achieves this, along with them being more streamline to my body. Quote: (Originally Posted by scubamartin) Hi, For those of you who had their CL sewn, what are the practical benifits of this modification. I can think of a few but would like to know from real experience Thanks a lot __________________ Patti Meg Diver Remember that great love and great achievements involve great risk
(Offline)

15th January 2008, 03:35	#29 (permalink)
Abbo Going down on Meg Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2006 Location: Tokyo Posts: 389	Re: Excessive counterlung volume on my MEG I have huge lungs, so this is not really a problem for me. Still, I'm intrigued: is there really that much to be gained from getting your CLs sewn up? Won't small CLs using a larger portion of their capacity stand out proud from the body more? Properly clippped off at the bottom, they shouldn't really be flapping around. And I feel some comfort in knowing that I can use the CLs for added buoyancy in a pinch. Since water gets directed to the CLs, to help protect us against caustic cocktails in the Meg, I find some small comfort in knowing that there's plenty of space for that water to go. Finally, for an average-sized male (which I'm not) tidal volume is 0.5 litres, against a total lung capacity of 6.0 litres and forced vital capacity of 4.8 litres. That must mean that big breaths in an emergency are far larger than typical breaths. Take a look at this and tell me what you think: Lung volumes - Wikipedia, the free encyclopedia As ever, I have no axe to grind: I merely humbly seek knowledge
(Offline)

15th January 2008, 14:28	#30 (permalink)
tibby untitled Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: May 2007 Location: Salt Lake City, UT Posts: 335	Re: Excessive counterlung volume on my MEG Quote: (Originally Posted by Abbo) I have huge lungs, so this is not really a problem for me. Still, I'm intrigued: is there really that much to be gained from getting your CLs sewn up? Won't small CLs using a larger portion of their capacity stand out proud from the body more? Properly clippped off at the bottom, they shouldn't really be flapping around. And I feel some comfort in knowing that I can use the CLs for added buoyancy in a pinch. Since water gets directed to the CLs, to help protect us against caustic cocktails in the Meg, I find some small comfort in knowing that there's plenty of space for that water to go. Finally, for an average-sized male (which I'm not) tidal volume is 0.5 litres, against a total lung capacity of 6.0 litres and forced vital capacity of 4.8 litres. That must mean that big breaths in an emergency are far larger than typical breaths. Take a look at this and tell me what you think: Lung volumes - Wikipedia, the free encyclopedia As ever, I have no axe to grind: I merely humbly seek knowledge That's why I think this is a better option http://www.rebreatherworld.com/megal...g-c-l-mod.html It allows you to revert to the full size CL in about one second by simply pulling the SPG hoses up separating the velcro. Tibby __________________ Does the voice of reason change when you add helium to the mix?...hmm
(Offline)

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