Are you repacking your cannister ?

mattmexico · 28th November 2007, 12:17

yo all

We have had some interesting discussion lately to Co2 related issues that provided me with interesting insight and made me think about my own practice of ccr diving as well as hardware related configuration issues.

- Re-using your partial used scrubber material
- The need of having a BOV

And now this video was made available where it was stated that it is common practice by some divers to repack their scrubber cannisters .....

I would like to know how many are out there really doing that.

Are you repacking your scrubber cannister with partial used material ?

greetings
Matt

**wedivebc** · 28th November 2007, 12:42

I am always reluctant to answer such polls when the answer I give could result in a "who trained you" type question but yes I used to repack until I heard some compelling arguments not to. Never had a problem when I did but it was really a crap shoot.

**RichClark** · 28th November 2007, 12:46

No, never - bare in mind I've only been diving CCR for 2 years, but I always thought that repacking was an urban myth... its beggars believe that people were taught this.

Cheers

Rich

cramerdn · 28th November 2007, 13:01

I was taght to not repack, bag the scrubber overnight if it was going to be used again, and to pack a solid tight scrubber with lots of tapping.

I have since seen the AP video about not tapping, settling, and making a tight scrubber. Any thoughts on the dangers or advantages of a tightly packed Evo canister vs the looser version in the AP vid?

PaulTG2 · 28th November 2007, 13:05

Hello,

I'm fairly new to rebreather diving but I have never don't this -- and I don't recall hearing anyone suggest it before I saw the video. Perhaps it is a regional thing?

Most of the myths I've been taught NOT to do involve storage of new or used sorb.

-p

***caveseeker7*** · 28th November 2007, 13:09

Big no-no from everyone who ever taught me anything about RBs, so I heed their words.

decoweenie · 28th November 2007, 13:12

Quote: (Originally Posted by cramerdn)

Any thoughts on the dangers or advantages of a tightly packed Evo canister vs the looser version in the AP vid?

On all of the Rebreather's I have used, I have ALWAYS tight-packed the scrubber. Even when the scrubber has spring to load the sorb (i.e. Golem, EDO, APD, etc)

Reason: I was taught to do that 10 years ago, and have been doing it eversince.

Result: Never had any channeling issue. Had some over-breathing-the-unit issues, but that was unit-specific and also depending on the actual dive conditions.

I have never seen anyone packs the way APD recommends in the video, so can't comment but (personally) not going to change what works (for a long time).

Hanssing · 28th November 2007, 13:42

Quote: (Originally Posted by mattmexico)

Are you repacking your scrubber cannister with partial used material ?

That would be a no.

But, the rEvo serial scrubber/canister-design allows for re-use of 50% in a changing cycle - Its not repacking at all, but another approach to increase effeciency and safety in Sorb-usage.

Nicolai

matt crane · 28th November 2007, 13:49

Well I only passed my MoD1 this week but I was taught that repacking with used material was a big no no. So no I wont be doing this anytime soon.

***Decodiver*** · 28th November 2007, 14:32

Quote: (Originally Posted by decoweenie)

On all of the Rebreather's I have used, I have ALWAYS tight-packed the scrubber. Even when the scrubber has spring to load the sorb (i.e. Golem, EDO, APD, etc)

Reason: I was taught to do that.......

Bang on Phi!

Thanks for cutting down on my need to type.

Cheers,

Dave.

View Poll Results: Are you repacking your scrubber with partially used material ?.
Yes - I do repack my scrubber mith partially used material	6	1.60%
No - I do not repack my scrubber with partially used material	348	93.05%
I did some time ago but not anymore	20	5.35%
Voters: 374. You may not vote on this poll

28th November 2007, 12:17	#1 (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: 764	Are you repacking your cannister ? yo all We have had some interesting discussion lately to Co2 related issues that provided me with interesting insight and made me think about my own practice of ccr diving as well as hardware related configuration issues. - Re-using your partial used scrubber material - The need of having a BOV And now this video was made available where it was stated that it is common practice by some divers to repack their scrubber cannisters ..... I would like to know how many are out there really doing that. Are you repacking your scrubber cannister with partial used material ? greetings Matt __________________ N 20' 37.617' W 87' 04.693' www.andreaswmatthes.com
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28th November 2007, 12:42	#2 (permalink)
wedivebc Dave Tomblin 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: 1,447	Re: Are you repacking your cannister ? I am always reluctant to answer such polls when the answer I give could result in a "who trained you" type question but yes I used to repack until I heard some compelling arguments not to. Never had a problem when I did but it was really a crap shoot. __________________ Cheers, Dave.... Man is the only animal burdened with the knowledge he will eventually die
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28th November 2007, 12:46	#3 (permalink)
RichClark Classic KISS No. 226 Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Mar 2005 Location: Hove, UK Posts: 779	Re: Are you repacking your cannister ? No, never - bare in mind I've only been diving CCR for 2 years, but I always thought that repacking was an urban myth... its beggars believe that people were taught this. Cheers Rich __________________ The more I learn about women, the more I want to go diving... just don't tell my wife I said that To taste something a little different, try http://www.thechillikitchen.co.uk
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28th November 2007, 13:01	#4 (permalink)
cramerdn Obey my dog! Current Rebreather/s: Evolution Dolphin Other Rebreather/s: Dolphin Join Date: Dec 2006 Location: Townsville QLD Posts: 612	Re: Are you repacking your cannister ? I was taght to not repack, bag the scrubber overnight if it was going to be used again, and to pack a solid tight scrubber with lots of tapping. I have since seen the AP video about not tapping, settling, and making a tight scrubber. Any thoughts on the dangers or advantages of a tightly packed Evo canister vs the looser version in the AP vid? __________________ "Its better to live one day as a tiger than an entire life as a worm." "But who's ever heard of a worm skin rug?"
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28th November 2007, 13:05	#5 (permalink)
PaulTG2 Custom Title Allowed! Current Rebreather/s: Megalodon Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Mar 2006 Location: Virginia, USA Posts: 425	Re: Are you repacking your cannister ? Hello, I'm fairly new to rebreather diving but I have never don't this -- and I don't recall hearing anyone suggest it before I saw the video. Perhaps it is a regional thing? Most of the myths I've been taught NOT to do involve storage of new or used sorb. -p
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28th November 2007, 13:09	#6 (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: 5,494	Re: Are you repacking your cannister ? Big no-no from everyone who ever taught me anything about RBs, so I heed their words. __________________ Cheers Stefan "Political Correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.!"
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28th November 2007, 13:12	#7 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Are you repacking your cannister ? Quote: (Originally Posted by cramerdn) Any thoughts on the dangers or advantages of a tightly packed Evo canister vs the looser version in the AP vid? On all of the Rebreather's I have used, I have ALWAYS tight-packed the scrubber. Even when the scrubber has spring to load the sorb (i.e. Golem, EDO, APD, etc) Reason: I was taught to do that 10 years ago, and have been doing it eversince. Result: Never had any channeling issue. Had some over-breathing-the-unit issues, but that was unit-specific and also depending on the actual dive conditions. I have never seen anyone packs the way APD recommends in the video, so can't comment but (personally) not going to change what works (for a long time).
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28th November 2007, 13:42	#8 (permalink)
Hanssing flap-flop ..... flap-flop Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Denmark Posts: 405	Re: Are you repacking your cannister ? Quote: (Originally Posted by mattmexico) Are you repacking your scrubber cannister with partial used material ? That would be a no. But, the rEvo serial scrubber/canister-design allows for re-use of 50% in a changing cycle - Its not repacking at all, but another approach to increase effeciency and safety in Sorb-usage. Nicolai __________________ Woohooo - I can change my rEvo! Its going to be bitchin' tricked out piece of gear
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28th November 2007, 13:49	#9 (permalink)
matt crane New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Feb 2006 Location: Cornwall Posts: 98	Re: Are you repacking your cannister ? Well I only passed my MoD1 this week but I was taught that repacking with used material was a big no no. So no I wont be doing this anytime soon.
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28th November 2007, 14:32	#10 (permalink)
*Decodiver* Administrator Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jan 2005 Location: Geneva Posts: 2,197	Re: Are you repacking your cannister ? Quote: (Originally Posted by decoweenie) On all of the Rebreather's I have used, I have ALWAYS tight-packed the scrubber. Even when the scrubber has spring to load the sorb (i.e. Golem, EDO, APD, etc) Reason: I was taught to do that....... Bang on Phi! Thanks for cutting down on my need to type. Cheers, Dave. __________________ CCR/OC Trimix Instructor Trainer CCR Training to Mixed Gas in Switzerland, France, UK & Germany on Megalodon/COPIS-Megalodon/KISS/Sport KISS/Ouroboros/rEvo/Inspiration/Evolution/Sentinel www.zerogravitydiving.com Rebreather World Terms & Conditions Last edited by Decodiver : 29th November 2007 at 20:39.
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