Storing partially used Sorb.

Westwinds · 21st June 2005, 02:32

I was asked today to join a BBQ and dive at the local spot. There’s not much to see or do but it’s a great place to get wet, train, and configure equipment, in addition to a BBQ with a couple of buddies.

Being new to my rebreather I thought that this would be a great opportunity to get more time on my unit and iron out some minor issues.

The problem is, if I join this dive today I might not get out again for several days. Does this mean that my slightly used sorb would need to be disposed? It seems like a waste. During my training course we were taught to seal our scrubber baskets in plastic so that we could use the remaining time the next day. I don’t recall if I was ever told how long you could store the sorb before it was unsafe.

My question is two fold. How do you store your partially used sorb and how long would you store it before deciding to dispose of it.

Westwinds.

***caveseeker7*** · 21st June 2005, 03:49

Double bag basket, write date and usage time on bag, keep it for up to a month.

Nad · 21st June 2005, 07:05

Quote: (Originally Posted by Westwinds)

I was asked today to join a BBQ and dive at the local spot. There’s not much to see or do but it’s a great place to get wet, train, and configure equipment, in addition to a BBQ with a couple of buddies.

Being new to my rebreather I thought that this would be a great opportunity to get more time on my unit and iron out some minor issues.

The problem is, if I join this dive today I might not get out again for several days. Does this mean that my slightly used sorb would need to be disposed? It seems like a waste. During my training course we were taught to seal our scrubber baskets in plastic so that we could use the remaining time the next day. I don’t recall if I was ever told how long you could store the sorb before it was unsafe.

My question is two fold. How do you store your partially used sorb and how long would you store it before deciding to dispose of it.

Westwinds.

I don't know how long you can store it. There is a thread about CO2 where one of the main points is that is difficult to know when you have a hit or a spike of CO2. This is a good reason not to store the sorb too long.
With my home build I did store it for max 3 days.
With the Ouroboros I leave in the canister, I don't even dissassemble the unit, for max 24 hours. Probably it can stay longer but my life will not change for such amount of "wasted" money for sure it could change for a CO2 hit!

Best

Nad

***Decodiver*** · 21st June 2005, 07:37

I am with Stefan on this one.

Bag it, tag it, keep it for a timeframe you are comfortable with.

Cheers,

Dave Cooper.

Pierre Farrugia · 21st June 2005, 08:14

Me normally take it out of unit, until the electronics dries and then back in the unit and seal unit. I kept sofno for a month or so will no ill effects. But at the end I am new to this, so do same with caution!

Phil · 21st June 2005, 10:22

Same feeling as stefan, I do keep sof for a good 3 weeks to a month without any problem. Diving mainly at the week-end I tend to put 3 times 1 hour with 1 to 2 weeks between dives. Have done that for the last 3 years and I am still around. Obviously I apply this to the cool dives 40m max, for deeper I always use a fresh batch.

Joseph Grech · 21st June 2005, 11:34

Oh Gosh, then I must be a test rat !!!! I have dived with used sorb after 6 months with no apparent ill effects.

jhaaja · 21st June 2005, 11:47

I have been teached just leave the canister with the sorb on a shelf to dry. No bagging or anything like that. I usually get the hours done in a week or two.

I think that the sorb can`t dry too much if the inner canister is closed. There can`t be too much air going through the sorb. And isn`t the sorbs nominal moisture captured in the grain so that it is actually quite hard to dry it?

JH
Finland

Nad · 21st June 2005, 12:13

Maybe I'm the only one so lucky to have the possibility to dive everyday at whatever time I wish.

That's why I don't have the problem to store sorb for any time longer than 20 hours, however I think I will follow my previous opinion in case of...

Nad

***caveseeker7*** · 21st June 2005, 19:24

Quote: (Originally Posted by Joseph Grech)

I have dived with used sorb after 6 months with no apparent ill effects.

*Ahem* Explains a lot, doesn't it.

Quote: (Originally Posted by jhaaja)

I have been teached just leave the canister with the sorb on a shelf to dry. No bagging or anything like that. I usually get the hours done in a week or two.

Do you leave the rebreather completely assembled? Then the amount of CO2 is obviously limited to the loop content. But just leaving the Inspirations bucket open can not possibly be a good idea. That's like leaving the lid off the scrubber pail.

It was certainly hammered into us when at the very beginning that said pail needs to be sealed to keep the absorbant usable, and that double bag and tag is the way to go for temporary storage (more than 24 hrs - less than that the rig stays assembled). The reason for double bagging is to reduce the chance of a leak in a single bag.

21st June 2005, 02:32	#1 (permalink)
Westwinds Supporting Member Current Rebreather/s: Inspiration Classic Evolution Other Rebreather/s: Join Date: Jan 2005 Location: Ontario, Canada Posts: 89	Storing partially used Sorb. I was asked today to join a BBQ and dive at the local spot. There’s not much to see or do but it’s a great place to get wet, train, and configure equipment, in addition to a BBQ with a couple of buddies. Being new to my rebreather I thought that this would be a great opportunity to get more time on my unit and iron out some minor issues. The problem is, if I join this dive today I might not get out again for several days. Does this mean that my slightly used sorb would need to be disposed? It seems like a waste. During my training course we were taught to seal our scrubber baskets in plastic so that we could use the remaining time the next day. I don’t recall if I was ever told how long you could store the sorb before it was unsafe. My question is two fold. How do you store your partially used sorb and how long would you store it before deciding to dispose of it. Westwinds. __________________ Located in Canada
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21st June 2005, 03:49	#2 (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: 5,325	Sodasorb HP 6-12 Double bag basket, write date and usage time on bag, keep it for up to a month. __________________ Cheers Stefan "It is still a good day if you are on the green side of the grass! Su amigo Roberto!" Sponsor Lou in Race For Life!
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21st June 2005, 07:05	#3 (permalink)
Nad Rebel to the Bone Current Rebreather/s: Ouroboros Other Rebreather/s: Not Bought Yet Inspiration Classic Join Date: Mar 2005 Location: Europe Posts: 941	Quote: (Originally Posted by Westwinds) I was asked today to join a BBQ and dive at the local spot. There’s not much to see or do but it’s a great place to get wet, train, and configure equipment, in addition to a BBQ with a couple of buddies. Being new to my rebreather I thought that this would be a great opportunity to get more time on my unit and iron out some minor issues. The problem is, if I join this dive today I might not get out again for several days. Does this mean that my slightly used sorb would need to be disposed? It seems like a waste. During my training course we were taught to seal our scrubber baskets in plastic so that we could use the remaining time the next day. I don’t recall if I was ever told how long you could store the sorb before it was unsafe. My question is two fold. How do you store your partially used sorb and how long would you store it before deciding to dispose of it. Westwinds. I don't know how long you can store it. There is a thread about CO2 where one of the main points is that is difficult to know when you have a hit or a spike of CO2. This is a good reason not to store the sorb too long. With my home build I did store it for max 3 days. With the Ouroboros I leave in the canister, I don't even dissassemble the unit, for max 24 hours. Probably it can stay longer but my life will not change for such amount of "wasted" money for sure it could change for a CO2 hit! Best Nad __________________ The Impossible is often the Untried
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21st June 2005, 07:37	#4 (permalink)
*Decodiver* Administrator Current Rebreather/s: Megalodon Ouroboros rEvo Other CCR Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Sport Kiss Classic Kiss rEvo Other CCR Join Date: Jan 2005 Location: Geneva Posts: 2,168	I am with Stefan on this one. Bag it, tag it, keep it for a timeframe you are comfortable with. Cheers, Dave Cooper. __________________ 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
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21st June 2005, 08:14	#5 (permalink)
Pierre Farrugia Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: Malta Posts: 636	Me normally take it out of unit, until the electronics dries and then back in the unit and seal unit. I kept sofno for a month or so will no ill effects. But at the end I am new to this, so do same with caution! __________________ Pierre Farrugia My wife told me " If you don't quit diving I'm going to leave you" My reply " God, I'll miss you" www.atlam.org www.divemed.com
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21st June 2005, 10:22	#6 (permalink)
Phil Custom Title Allowed! Current Rebreather/s: Megalodon Ouroboros rEvo Other CCR Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Megalodon rEvo Other CCR Join Date: May 2005 Location: Geneva-Switzerland Posts: 170	Same feeling as stefan, I do keep sof for a good 3 weeks to a month without any problem. Diving mainly at the week-end I tend to put 3 times 1 hour with 1 to 2 weeks between dives. Have done that for the last 3 years and I am still around. Obviously I apply this to the cool dives 40m max, for deeper I always use a fresh batch. __________________ Phil __________________ CCR/OC Instructor CCR Training to Mixed Gas in Switzerland, France, UK & Germany on Megalodon/KISS/Ouroboros/rEvo/Inspiration/Evolution/Sentinel www.zerogravitydiving.com
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21st June 2005, 11:34	#7 (permalink)
Joseph Grech Joseph Grech Current Rebreather/s: Azimuth Other Rebreather/s: Azimuth Join Date: Mar 2005 Location: Malta Posts: 104	Oh Gosh, then I must be a test rat !!!! I have dived with used sorb after 6 months with no apparent ill effects.
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21st June 2005, 11:47	#8 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 867	I have been teached just leave the canister with the sorb on a shelf to dry. No bagging or anything like that. I usually get the hours done in a week or two. I think that the sorb can`t dry too much if the inner canister is closed. There can`t be too much air going through the sorb. And isn`t the sorbs nominal moisture captured in the grain so that it is actually quite hard to dry it? JH Finland
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21st June 2005, 12:13	#9 (permalink)
Nad Rebel to the Bone Current Rebreather/s: Ouroboros Other Rebreather/s: Not Bought Yet Inspiration Classic Join Date: Mar 2005 Location: Europe Posts: 941	Maybe I'm the only one so lucky to have the possibility to dive everyday at whatever time I wish. That's why I don't have the problem to store sorb for any time longer than 20 hours, however I think I will follow my previous opinion in case of... Nad __________________ The Impossible is often the Untried
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21st June 2005, 19:24	#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: 5,325	Quote: (Originally Posted by Joseph Grech) I have dived with used sorb after 6 months with no apparent ill effects. Ahem Explains a lot, doesn't it. Quote: (Originally Posted by jhaaja) I have been teached just leave the canister with the sorb on a shelf to dry. No bagging or anything like that. I usually get the hours done in a week or two. Do you leave the rebreather completely assembled? Then the amount of CO2 is obviously limited to the loop content. But just leaving the Inspirations bucket open can not possibly be a good idea. That's like leaving the lid off the scrubber pail. It was certainly hammered into us when at the very beginning that said pail needs to be sealed to keep the absorbant usable, and that double bag and tag is the way to go for temporary storage (more than 24 hrs - less than that the rig stays assembled). The reason for double bagging is to reduce the chance of a leak in a single bag. __________________ Cheers Stefan "It is still a good day if you are on the green side of the grass! Su amigo Roberto!" Sponsor Lou in Race For Life!
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