inspiration half fill adaptor

toe · 12th November 2007, 18:12

Has anyone made or thought of making a half fill scrubber adaptor for the ybod? (vision)

Cheers
Tony

Sten · 12th November 2007, 19:08

Quote: (Originally Posted by toe)

Has anyone made or thought of making a half fill scrubber adaptor for the ybod? (vision)

Cheers
Tony

No, why would you want one? I expect that the max depth would be reduced with a short scrubber bed.

/Sten

Soren Thomsen · 12th November 2007, 19:48

Quote: (Originally Posted by toe)

Has anyone made or thought of making a half fill scrubber adaptor for the ybod? (vision)

Cheers
Tony

Why???????????????????
Is sorb THAT expensive in Ireland?

toe · 12th November 2007, 19:53

If im not mistaken its time not depth limited. The evolution is a 1/3 smaller. The reason I would be interested is at this time of year I do short dives and may not get out again due to weather conditions for a good few weeks. Nice not to chuck full scubber.

Tony

toe · 12th November 2007, 19:57

Not really cost issue but disposal and getting new sorb. Guess I just hate waste.

Tony

Soren Thomsen · 12th November 2007, 20:04

Quote: (Originally Posted by toe)

If im not mistaken its time not depth limited. The evolution is a 1/3 smaller. The reason I would be interested is at this time of year I do short dives and may not get out again due to weather conditions for a good few weeks. Nice not to chuck full scubber.

Tony

I see your point but don't agree with you at all. I'm still a greenie but I would meen that a half full scrubber would meen a shorter gas travel through the sorb. My concern is that in a situation with heavy work load or problems expired gas will not be in active scrubber material for a suffecient amount of time to remove all CO2 = bad spiral.
Perhaps you should see it the other way around and say: With a full scrubber I need to go diving a bit more..

instead of reducing safety.

Just my 2 cents

Dive safe

Soren

toe · 12th November 2007, 20:17

Good points, I wonder in this case how less efficent the Evo scrubber is? and yes go diving more and no issue. Im with you there.

Stewybear · 12th November 2007, 23:24

Quote: (Originally Posted by Soren Thomsen)

I see your point but don't agree with you at all. I'm still a greenie but I would meen that a half full scrubber would meen a shorter gas travel through the sorb. My concern is that in a situation with heavy work load or problems expired gas will not be in active scrubber material for a suffecient amount of time to remove all CO2 = bad spiral.
Perhaps you should see it the other way around and say: With a full scrubber I need to go diving a bit more..

instead of reducing safety.

Just my 2 cents

Dive safe

Soren

You could always make a cylindrical packer, like a thick walled tube. Then when you insert this into the scrubber it leaves a smaller cross sectional area in the center but the same column height. Just fill the center piece with sorb and bobs your aunty.

Just a thought. Don't know if it would actually work. I guess you would have to have some sort of seal around the outside to stop any CO2 laden gasses bypassing the scrubber material. Anyone brave enought to try it?

Regards
Stewart

Ant Slegg · 16th November 2007, 07:27

Quote: (Originally Posted by Stewybear)

You could always make a cylindrical packer, like a thick walled tube.

Coming from a radial scrubber design background so not got a lot of experience on this type I imagined this suggestion basically means fitting a tube inside the scrubber (i.e. one whose Outside Diameter matched the Inside Diameter of the scrubber). If that's right then I'd be worried about getting a tight enough fit so that gas (CO2) couldn't find a path between the two (and if it was tight enough getting it out afterwards!

Apologies if I am on the wrong track.

Mdemon · 16th November 2007, 11:09

WOB would increase too...

12th November 2007, 18:12	#1 (permalink)
toe New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Oct 2006 Location: ireland Posts: 53	inspiration half fill adaptor Has anyone made or thought of making a half fill scrubber adaptor for the ybod? (vision) Cheers Tony
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12th November 2007, 19:08	#2 (permalink)
Sten Beeing Visionary Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: Göteborg, Sweden Posts: 46	Re: inspiration half fill adaptor Quote: (Originally Posted by toe) Has anyone made or thought of making a half fill scrubber adaptor for the ybod? (vision) Cheers Tony No, why would you want one? I expect that the max depth would be reduced with a short scrubber bed. /Sten __________________ Visionary
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12th November 2007, 19:48	#3 (permalink)
Soren Thomsen Happy Hippo Current Rebreather/s: Not Bought Yet Other Rebreather/s: Inspiration Classic Not Bought Yet Join Date: Jan 2006 Location: Denmark Posts: 138	Re: inspiration half fill adaptor Quote: (Originally Posted by toe) Has anyone made or thought of making a half fill scrubber adaptor for the ybod? (vision) Cheers Tony Why??????????????????? Is sorb THAT expensive in Ireland? __________________ - Giraffes were created when Chuck Norris uppercutted a horse -
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12th November 2007, 19:53	#4 (permalink)
toe New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Oct 2006 Location: ireland Posts: 53	Re: inspiration half fill adaptor If im not mistaken its time not depth limited. The evolution is a 1/3 smaller. The reason I would be interested is at this time of year I do short dives and may not get out again due to weather conditions for a good few weeks. Nice not to chuck full scubber. Tony
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12th November 2007, 19:57	#5 (permalink)
toe New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Oct 2006 Location: ireland Posts: 53	Re: inspiration half fill adaptor Not really cost issue but disposal and getting new sorb. Guess I just hate waste. Tony
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12th November 2007, 20:04	#6 (permalink)
Soren Thomsen Happy Hippo Current Rebreather/s: Not Bought Yet Other Rebreather/s: Inspiration Classic Not Bought Yet Join Date: Jan 2006 Location: Denmark Posts: 138	Re: inspiration half fill adaptor Quote: (Originally Posted by toe) If im not mistaken its time not depth limited. The evolution is a 1/3 smaller. The reason I would be interested is at this time of year I do short dives and may not get out again due to weather conditions for a good few weeks. Nice not to chuck full scubber. Tony I see your point but don't agree with you at all. I'm still a greenie but I would meen that a half full scrubber would meen a shorter gas travel through the sorb. My concern is that in a situation with heavy work load or problems expired gas will not be in active scrubber material for a suffecient amount of time to remove all CO2 = bad spiral. Perhaps you should see it the other way around and say: With a full scrubber I need to go diving a bit more.. instead of reducing safety. Just my 2 cents Dive safe Soren __________________ - Giraffes were created when Chuck Norris uppercutted a horse -
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12th November 2007, 20:17	#7 (permalink)
toe New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Oct 2006 Location: ireland Posts: 53	Re: inspiration half fill adaptor Good points, I wonder in this case how less efficent the Evo scrubber is? and yes go diving more and no issue. Im with you there.
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12th November 2007, 23:24	#8 (permalink)
Stewybear New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Sep 2007 Location: Bury St Edmunds Posts: 21	Re: inspiration half fill adaptor Quote: (Originally Posted by Soren Thomsen) I see your point but don't agree with you at all. I'm still a greenie but I would meen that a half full scrubber would meen a shorter gas travel through the sorb. My concern is that in a situation with heavy work load or problems expired gas will not be in active scrubber material for a suffecient amount of time to remove all CO2 = bad spiral. Perhaps you should see it the other way around and say: With a full scrubber I need to go diving a bit more.. instead of reducing safety. Just my 2 cents Dive safe Soren You could always make a cylindrical packer, like a thick walled tube. Then when you insert this into the scrubber it leaves a smaller cross sectional area in the center but the same column height. Just fill the center piece with sorb and bobs your aunty. Just a thought. Don't know if it would actually work. I guess you would have to have some sort of seal around the outside to stop any CO2 laden gasses bypassing the scrubber material. Anyone brave enought to try it? Regards Stewart
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16th November 2007, 07:27	#9 (permalink)
Ant Slegg Still Learning.... Current Rebreather/s: Ouroboros Other Rebreather/s: Ouroboros Join Date: Nov 2005 Location: Grevenmacher, Luxembourg Posts: 167	Re: inspiration half fill adaptor Quote: (Originally Posted by Stewybear) You could always make a cylindrical packer, like a thick walled tube. Coming from a radial scrubber design background so not got a lot of experience on this type I imagined this suggestion basically means fitting a tube inside the scrubber (i.e. one whose Outside Diameter matched the Inside Diameter of the scrubber). If that's right then I'd be worried about getting a tight enough fit so that gas (CO2) couldn't find a path between the two (and if it was tight enough getting it out afterwards! Apologies if I am on the wrong track. __________________ Ant' S Learning to dive since 1990...
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16th November 2007, 11:09	#10 (permalink)
Mdemon SiegeEngine II Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Inspiration Classic Home Build Join Date: Feb 2007 Location: SWUK Posts: 1,890	Re: inspiration half fill adaptor WOB would increase too... __________________ www.southwestmafia.com It's as easy as abc; a) "Carry adequate bailout" b) "If in doubt, bail out" c) "Always know your PO2" If you find that hard, stick to crochet. "Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"
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