Storing sofnolime in scrubber housing!!!

**Gill Envy** · 27th April 2007, 23:51

My instructor was Peter Den Haan. He is the one that recommended taking the insert out and letting some of the excess moisture in the used sorb dry a bit before storage inbetween dives (lets be clear, i'm NOT talking about repacking the sorb... there is no way to prevent channels of used sorb from leading to breakthrough). He was clear that he only recomended it on repetative shallow dives, otherwise, best to bin and start with fresh sorb. After reading more on the subject, i've gotten the impression that air tight is not as important as one might think. Protecting the sorb from high heat and circulating air is more critical. After a month I chuck it and the longer it's been since I originally use it the less I push the total number of hours or depth. Unfortunately there is little imperical evidence to give us something objective to go on. Sorb is a pretty stable chemical and moisture content is important, but the inside of the loop quickly reaches %100 relative humidity so it seems a bit moot to me.
g

Quote: (Originally Posted by Dave Faye)

Gil are you saying you keep the scrubber in the canister insert let it dry overnight and them place the canister insert in an airtight bag?
Is this how most store it after shorter duration dives? Anyone want to give me some input.

I just say f-it and repack most of the time.

Sutty · 28th April 2007, 00:00

Quote: (Originally Posted by Stewart McMickan)

Any Recommendations on storing sofnolime after only 1hrs use for periods of up to three weeks? should it be replaced or does it have much effect of the duration of the scrubber? at present i make sure that it is dry and store it in an air tight container.

I keep a little-used scrubber for a couple of weeks or so sealed up, your post sounds a bit like you are emptying the lime from the scrubber and re-using it later, This would be a Bad Idea.

Neil

divetheworld · 28th April 2007, 17:45

All of these at link -> Home

Andy Del · 28th April 2007, 19:27

The KISS cap looks nice - I take the scrubber off, grab a pen and piece of paper towel. Write the sorb duration on hte paper, and pop on top of the scrubber. It's effectively sealed from air flow, small bugs and getting mixed up with the other scrubber which has a different use time / is empty.

Personally, all the fuss about airtight, dry the sorb, disinfect is a tad over the top for a personal unit.

**wedivebc** · 28th April 2007, 21:05

Quote: (Originally Posted by divetheworld)

All of these at link -> Home

The kiss cap looks like some air could flow down the threaded rod but what about the meg cap. If you put that on a warm meg then it cooled off would the reduced pressure make the cap hard to remove? I would want a vent of some kind

Janos · 28th April 2007, 21:19

Quote: (Originally Posted by wedivebc)

The kiss cap looks like some air could flow down the threaded rod but what about the meg cap. If you put that on a warm meg then it cooled off would the reduced pressure make the cap hard to remove? I would want a vent of some kind

I have one of John's KISS caps and it truly is A Thing Of Beauty.

I used to use a couple of sandwich bags and some rubber bands to cap the scrubber, not so much to stop CO2 circulating (although it does that) but also to stop the lime drying out as it needs some moisture to function.

The Narked@90 caps seal well, and have a cunning large knurled knob that makes a seal against the scrubber cap. I doubt (but could be wrong) that it's 100% watertight but it's fine for just leaving in a room.

Plus (unlike the plastic bags) the scrubber is safe if you knock it over.

Janos

Silent · 29th April 2007, 10:59

Quote: (Originally Posted by wedivebc)

what about the meg cap. If you put that on a warm meg then it cooled off would the reduced pressure make the cap hard to remove? I would want a vent of some kind

John has thought of this situation, so there is a small slot cut into the thin layer of sealing foam on the underside of the cap to allow the pressure to equalise.

I can post a pic of the underside of the cap if needed.

Neil

jptaylor9 · 29th April 2007, 11:06

Looking at the Inspo scrubber, I'd prefer not to remove the hose from the side pipe, told this can be difficult to seal if removed often. Best to leave it attached. Better to have something that attached to the hose (that attaches to T piece).

scubagrunt · 29th April 2007, 12:04

Quote: (Originally Posted by wedivebc)

The kiss cap looks like some air could flow down the threaded rod but what about the meg cap. If you put that on a warm meg then it cooled off would the reduced pressure make the cap hard to remove? I would want a vent of some kind

Hi Dave, i have a meg cap from John and have never had a venting problem. i put it on right away after i am finished, so the sorb is still warm, and then it cools overnight. I love me cap, hope this helps.
mel

divetheworld · 29th April 2007, 13:59

Quote: (Originally Posted by jptaylor9)

Looking at the Inspo scrubber, I'd prefer not to remove the hose from the side pipe, told this can be difficult to seal if removed often. Best to leave it attached. Better to have something that attached to the hose (that attaches to T piece).

Thats fine, when you order from John, just tell him whether you want a hose cap or a side tube cap. He will supply either in the kit with no difference in price.
It might also be good to point out that the design of the top plate is such that it will fit either the Classic, Evo or Vision types with a gasket change. Speak to John to get all the details.

Brent

27th April 2007, 23:51	#11 (permalink)
Gill Envy Shearwater Copis Diver Current Rebreather/s: Other CCR Other Rebreather/s: Evolution Other CCR Join Date: Nov 2005 Location: seattle Posts: 1,248	Re: Storing sofnolime in scrubber housing!!! My instructor was Peter Den Haan. He is the one that recommended taking the insert out and letting some of the excess moisture in the used sorb dry a bit before storage inbetween dives (lets be clear, i'm NOT talking about repacking the sorb... there is no way to prevent channels of used sorb from leading to breakthrough). He was clear that he only recomended it on repetative shallow dives, otherwise, best to bin and start with fresh sorb. After reading more on the subject, i've gotten the impression that air tight is not as important as one might think. Protecting the sorb from high heat and circulating air is more critical. After a month I chuck it and the longer it's been since I originally use it the less I push the total number of hours or depth. Unfortunately there is little imperical evidence to give us something objective to go on. Sorb is a pretty stable chemical and moisture content is important, but the inside of the loop quickly reaches %100 relative humidity so it seems a bit moot to me. g Quote: (Originally Posted by Dave Faye) Gil are you saying you keep the scrubber in the canister insert let it dry overnight and them place the canister insert in an airtight bag? Is this how most store it after shorter duration dives? Anyone want to give me some input. I just say f-it and repack most of the time. __________________ Gill Envy ...Because I wasn't born with gills! ><(°>><(°>><(°>><(°>><(°>><(°>><(°>><(°>
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28th April 2007, 00:00	#12 (permalink)
Sutty Classic Kiss diver Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Jun 2005 Location: Glossop, Derbyshire, UK Posts: 774	Re: Storing sofnolime in scrubber housing!!! Quote: (Originally Posted by Stewart McMickan) Any Recommendations on storing sofnolime after only 1hrs use for periods of up to three weeks? should it be replaced or does it have much effect of the duration of the scrubber? at present i make sure that it is dry and store it in an air tight container. I keep a little-used scrubber for a couple of weeks or so sealed up, your post sounds a bit like you are emptying the lime from the scrubber and re-using it later, This would be a Bad Idea. Neil __________________ Never forget that life is a finite resource.
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28th April 2007, 17:45	#13 (permalink)
divetheworld Dive porn pimp Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Classic Kiss Other CCR Join Date: Mar 2005 Location: Leeds, England Posts: 1,535	Re: Storing sofnolime in scrubber housing!!! All of these at link -> Home __________________ Self praise is no reccomendation. Dont try to be a great man, just be a man and let history be the judge of you. CHECK OUT OUR INTERWEBS FOR CUSTOM REBREATHER UPGRADES *WWW.NARKEDAT90.CO.UK* *http://www.grpservices.com/pursuit/* Supporting Shearwater Research Products in Europe
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28th April 2007, 19:27	#14 (permalink)
Andy Del Classic KISSer Current Rebreather/s: Sport Kiss Classic Kiss Other Rebreather/s: Join Date: Feb 2005 Location: Australia, Sunny Sydney Posts: 389	Re: Storing sofnolime in scrubber housing!!! The KISS cap looks nice - I take the scrubber off, grab a pen and piece of paper towel. Write the sorb duration on hte paper, and pop on top of the scrubber. It's effectively sealed from air flow, small bugs and getting mixed up with the other scrubber which has a different use time / is empty. Personally, all the fuss about airtight, dry the sorb, disinfect is a tad over the top for a personal unit. __________________ Yellow - the colour of greatness!
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28th April 2007, 21:05	#15 (permalink)
wedivebc FIGJAM 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: 1,352	Re: Storing sofnolime in scrubber housing!!! Quote: (Originally Posted by divetheworld) All of these at link -> Home The kiss cap looks like some air could flow down the threaded rod but what about the meg cap. If you put that on a warm meg then it cooled off would the reduced pressure make the cap hard to remove? I would want a vent of some kind __________________ Cheers, Dave.... Man is the only animal burdened with the knowledge he will eventually die
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28th April 2007, 21:19	#16 (permalink)
Janos "Two Sheds" Current Rebreather/s: Classic Kiss Other Rebreather/s: Classic Kiss Join Date: Feb 2005 Location: East Surrey Posts: 579	Re: Storing sofnolime in scrubber housing!!! Quote: (Originally Posted by wedivebc) The kiss cap looks like some air could flow down the threaded rod but what about the meg cap. If you put that on a warm meg then it cooled off would the reduced pressure make the cap hard to remove? I would want a vent of some kind I have one of John's KISS caps and it truly is A Thing Of Beauty. I used to use a couple of sandwich bags and some rubber bands to cap the scrubber, not so much to stop CO2 circulating (although it does that) but also to stop the lime drying out as it needs some moisture to function. The Narked@90 caps seal well, and have a cunning large knurled knob that makes a seal against the scrubber cap. I doubt (but could be wrong) that it's 100% watertight but it's fine for just leaving in a room. Plus (unlike the plastic bags) the scrubber is safe if you knock it over. Janos __________________ You can lead a horse to water but you can't climb a ladder with a large bell in both hands - Vic Reeves www.hellfins.com/shed
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29th April 2007, 10:59	#17 (permalink)
Silent Staying Silent! Mostly... Current Rebreather/s: Megalodon Other Rebreather/s: Ouroboros Join Date: Jun 2005 Location: Northants, UK Posts: 381	Re: Storing sofnolime in scrubber housing!!! Quote: (Originally Posted by wedivebc) what about the meg cap. If you put that on a warm meg then it cooled off would the reduced pressure make the cap hard to remove? I would want a vent of some kind John has thought of this situation, so there is a small slot cut into the thin layer of sealing foam on the underside of the cap to allow the pressure to equalise. I can post a pic of the underside of the cap if needed. Neil
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29th April 2007, 11:06	#18 (permalink)
jptaylor9 Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: London, UK Posts: 309	Re: Storing sofnolime in scrubber housing!!! Looking at the Inspo scrubber, I'd prefer not to remove the hose from the side pipe, told this can be difficult to seal if removed often. Best to leave it attached. Better to have something that attached to the hose (that attaches to T piece).
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29th April 2007, 12:04	#19 (permalink)
scubagrunt CCR Diva Current Rebreather/s: Inspiration Classic Megalodon Classic Kiss Optima rEvo Other CCR Other SCR Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Evolution Megalodon Sport Kiss Classic Kiss Optima rEvo Other CCR Other SCR Join Date: May 2005 Location: Washington Posts: 401	Re: Storing sofnolime in scrubber housing!!! Quote: (Originally Posted by wedivebc) The kiss cap looks like some air could flow down the threaded rod but what about the meg cap. If you put that on a warm meg then it cooled off would the reduced pressure make the cap hard to remove? I would want a vent of some kind Hi Dave, i have a meg cap from John and have never had a venting problem. i put it on right away after i am finished, so the sorb is still warm, and then it cools overnight. I love me cap, hope this helps. mel __________________ "No good deed goes unpunished!" www.silentscuba.com
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29th April 2007, 13:59	#20 (permalink)
divetheworld Dive porn pimp Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Classic Kiss Other CCR Join Date: Mar 2005 Location: Leeds, England Posts: 1,535	Re: Storing sofnolime in scrubber housing!!! Quote: (Originally Posted by jptaylor9) Looking at the Inspo scrubber, I'd prefer not to remove the hose from the side pipe, told this can be difficult to seal if removed often. Best to leave it attached. Better to have something that attached to the hose (that attaches to T piece). Thats fine, when you order from John, just tell him whether you want a hose cap or a side tube cap. He will supply either in the kit with no difference in price. It might also be good to point out that the design of the top plate is such that it will fit either the Classic, Evo or Vision types with a gasket change. Speak to John to get all the details. Brent __________________ Self praise is no reccomendation. Dont try to be a great man, just be a man and let history be the judge of you. CHECK OUT OUR INTERWEBS FOR CUSTOM REBREATHER UPGRADES *WWW.NARKEDAT90.CO.UK* *http://www.grpservices.com/pursuit/* Supporting Shearwater Research Products in Europe Last edited by divetheworld : 29th April 2007 at 14:01.
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