[PSUBS-MAILIST] scrubber performance

[hank pronk]

James,
When I read the manual for my inspiration rebreather scrubber, it says to not remove the absorbent.  I have no idea why, maybe because they do not use colour indicating.  I just bag the whole scrubber.  I like your way better though, it seems more bullet proof.
Hank



On Friday, January 31, 2014 8:35:43 AM, James Frankland <jamesf at guernseysubmarine.com> wrote:
  
yes, i pour it out of the scrubber back into the container it comes in.  


On 31 January 2014 15:33, hank pronk <hanker_20032000 at yahoo.ca> wrote:

James, 
>Do you remove the absorbent after each use, then put it back in the scrubber?  
>Hank 
>
>
>
>On Friday, January 31, 2014 8:27:54 AM, James Frankland <jamesf at guernseysubmarine.com> wrote:
> 
>yes, it comes in 5L sealed plastic cans, like oil does.  I just pour it back in and screw the lid on.  Im waiting to see how long 5l lasts.  I make a note each time I use it of how long its been on for.  So far i've done about 5 hours and there is no change in colour or performance. 
>James
>
> 
>On 31 January 2014 15:23, hank pronk <hanker_20032000 at yahoo.ca> wrote:
>
>James, 
>>Do you seal your scrubber some way when your not using it. 
>>Hank 
>>
>>
>>
>>On Friday, January 31, 2014 7:39:48 AM, James Frankland <jamesf at guernseysubmarine.com> wrote:
>> 
>>hi Hank, 
>>Thats good news on the shelf life of the absorbent.  Ive got 6 5L canisters and was worried they were going to go bad.  Looks like they will be ok for a while yet! 
>>regards 
>>James
>>
>> 
>>On 31 January 2014 13:33, hank pronk <hanker_20032000 at yahoo.ca> wrote:
>>
>>James, 
>>>Thank you for the clarification.  I was also surprised that the co2 level was in the neighbourhood of 5,000ppm when I turned the sensor on.  I assumed the air quality would be better with the hatch open while I tinker inside. I hooked up my shop vac to the flood valve to suck clean air inside before I started my test. 
>>>  Carsten  mentioned one time that he has used 20yr old absorbent.   Gamma came with full bottles of absorbent that have to be around 20 yrs old.  I experimented with the old material and it worked the same as new stuff. Talk about shelf life.  
>>>Hank 
>>>
>>> 
>>>
>>>
>>>
>>>On Friday, January 31, 2014 3:00:36 AM, James Frankland <jamesf at guernseysubmarine.com> wrote:
>>> 
>>>Hi Hank, 
>>>
>>>Ive got one of Emiles scrubbers.  Holds the sub at 3200 - 3500 and i find this quite ok.  I did try an experiment (on land with an assistant watching) where i let CO2 get to 7500 -  10000ppm for about half an hour.  I could tolerate this just, but i wouldnt like it to go any more.
>>> 
>>>Kind Regards 
>>>James
>>> 
>>>On 30 January 2014 20:19, Emile van Essen <emile at airesearch.nl> wrote:
>>> 
>>>Hank, 
>>>>  
>>>>Is normal, The CO2 level must rise first before the scrubber warms up and starts to work. In cold weather it will take longer and you may consider electrical preheating. 
>>>>2300 PPM / 0,23 % is a good figure anyway!  
>>>>  
>>>>Regards, Emile 
>>>>  
>>>>  
>>>>Van:Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] Namens hank pronk
>>>>Verzonden: donderdag 30 januari 2014 19:45
>>>>Aan: Personal Submersibles General Discussion
>>>>Onderwerp: [PSUBS-MAILIST] scrubber performance  
>>>>  
>>>>Is it normal for a scrubber's performance to improve after 15 min or so.  My scrubber is maintaining the sub at  2,300 ppm  but started much higher like 3,500 ppm.   Is 2,300 ppm on the high side?   
>>>>Hank 
>>>>
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>>>> 
>>> 
>>>
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