Full scruber- cancelled dive

K

Kam

New Member
Hello,

I was planning on diving tomorrow and the moment I loaded last cylinder to my truck I had a message from my buddy that he can't make it.

Question:
If I have filled the scrubber and only did 5-10 breaths(pos, neg , etc), am I ok to store it and use it next weekend or just get rid of it?

Thanks
Kam
 
Keep it. It's all built up, leave it that way. When you go out later just recheck and dive. The sorb doesn't know it is being stored in a rebreather any differently than if it was stored in the keg.

But I stick with my rule that once sorb leaves the keg, no matter what, it never goes back in.
 
It would not hurt to do a stereo check on the mushroom valves before you take it out next weekend either.
 
leave it in the unit as it is airtight... i also put my packed scrubber into an airtight raftingbag to store them between the dives. sorb doesn't het bad by not using it...
 
I have a similar question but wonder "is the clock ticking" on sorb that has been used for one dive vs never used.

Say for example that you change your sorb after 3 hours. If I do a 1 hour dive, then after cleaning and reassembling the rebreather, store it for say 1-2 weeks before using it again. Is there still 2 hours left in the sorb or does the fact that I've started breathing it, mean that the shelf/remaining life is less than sorb which has never left the keg.

Personally I'd rather pack a scrubber, use it for 1 or 2 big dives in a day/weekend then chuck it, but times exist where I need to store it after 1 dive and want to know if I am being risky to store partially used sorb for another day.
 
What does sorb do? it binds co2.
What does stored sorb do? It binds all available co2 in its bag/box.
What does keged sorb do? Binding all co2 in the unfilled part of the keg.

So to Adress your question: used sorb will do what? Bind available sorb. The less available co2, the less activity. In a sealed dry bag with as minimal air as possible, it will not affect your total dive time IMHO :-)
 
Have left partially used sorb in my rEvo canisters for up to 3 months and was fine when I used it, I have seen some research that used sorb will refresh to a degree while stored.
 
jwd said:
I have a similar question but wonder "is the clock ticking" on sorb that has been used for one dive vs never used.

Say for example that you change your sorb after 3 hours. If I do a 1 hour dive, then after cleaning and reassembling the rebreather, store it for say 1-2 weeks before using it again. Is there still 2 hours left in the sorb or does the fact that I've started breathing it, mean that the shelf/remaining life is less than sorb which has never left the keg.

Personally I'd rather pack a scrubber, use it for 1 or 2 big dives in a day/weekend then chuck it, but times exist where I need to store it after 1 dive and want to know if I am being risky to store partially used sorb for another day.
Click to expand...

See the link from SM.

Personally, I would only use again a stored scrubber after that time period and usage if it were for a short/easy dive (eg checking out the unit after making some changes or the like). That said, my Evo only has a 2 hour rated scrubber so normally 1 day's diving = scrubber that's not worth saving, even if the two dives were under 2hrs!
 
Semaj said:
Have left partially used sorb in my rEvo canisters for up to 3 months and was fine when I used it, I have seen some research that used sorb will refresh to a degree while stored.
Click to expand...

If you are using RMS I would advise against storing Sorb - I have done this and every-time I store for 1 week or longer the SORB begins to corrode the RMS probe and can get under the screw and into the workings of the probe.

With non-RMS scrubber I can keep sorb for weeks with no corrosion.

(my advise is worth 0).

Adrian Sender
 
^ Been using the rEvo RMS for 6 years, have not noticed any corrosion from keeping sorb in the RMS canister, as mentioned above have had sorb stored in an RMS canister for up to three months.
 
If you're leaving it buttoned up, I'd probably do a DIL flush just so the cells aren't being exposed to a high level of oxygen over the duration of the week.
 
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