Dolphin sorb fine or course

dmo85471 · 15th June 2007, 10:59

HI ALL
I need a little advice, has any one been using the fine grade SOFOLIME in there Dolphin? Have there been any changes in the breathing etc or any other changes? And how long have you been using it?

The reason is that in Western Australia the 2-5mm is no easy to get and at a good price but the finer grade is a lot easer to get and I think cheaper.
My local dive charter has been very good and has worked hard to keep me going, but to change would make it easer for him and me.
Thanks for any advice David

4ster · 15th June 2007, 15:01

This is not based on personal experience, but on posts from other dolphin divers on this forum. With the finer grade people report a higher WOB. The coarse stuff is better. If you do a search in this forum you will find recommendations.
------
This is from an old OMS catalog:
Sofnolime, 8-12 mesh / 1.0 - 2.5mm particle diameter, 44lb keg $225.73
Sofnolime, 4-8 mesh / 2.0 - 5.0 mm particle diameter, 44lb keg $193.48

At least the 4-8 is cheaper!

dmo85471 · 15th June 2007, 20:17

HI Steve
Thanks for the reply and yes I have spoken to one person here that has used the fine grade and he did say that his WOB was a little harder but not much.
I just wanted to no if any one here had used the fine. And as for cost I can get the fine cheaper here? Thanks for the reply. David

**Freef** · 16th June 2007, 06:20

At the depths the standard Dolph is used at I have found no difference in WOB between Drager Divesorb, 2-5mm or 1-2.5mm grade.

Divesorb is easier to pack than 1-2.5, which needs a bit longer knocking flat time, and also seems better than 2-5mm in longevity. When I have used 2-5mm the hot spot is more diffuse and seems to travel faster.

In the UK Divesorb is £110+ is per 20kg, whereas I can get Molecular Products stuff at around the £60 mark for the same amount.

The drawback of 1-2.5mm is that the gratings in the Dolph aren't fine enough to guarentee that you won't get any drop through, but I have not had any get further that sitting in the bottom of the water trap, and then it is only one or two grains.

magentaseas · 17th June 2007, 12:26

Hi

Ive found the same as David and not had any problems with 1-2.5 Sofnolime. I had previously used Dragersorb and didnt notice any difference when I changed over.

sharon

dmo85471 · 17th June 2007, 13:33

HI Sharon
How long have you been using the fine grade for and how deep have you been. Thanks for the reply David

jar_uk1 · 18th June 2007, 07:20

I also use the fine grade sofnolime from molecular products and didnt notice any change in effort compared to dragersorb,

Dives have been to 34-35m.

John

dmo85471 · 18th June 2007, 12:29

Thanks for the replys and I think it is time to give it a try and find out for my self. I have been using sorb for a max of four hours on the bigger grade, so on the fine stuff how long have you gone on one fill? David

**Freef** · 18th June 2007, 15:47

In the colder waters of the UK I tend to change the scrubber after 2 hours in cooler conditions [10 C or less] and three in warmer water [above 10 C].

The "book" has dropped the duration from 3 to 2 hours. The attached PDF is from the tests that Drager did usign Dragersorb.

dmo85471 · 18th June 2007, 22:05

The water temp here is 20 (winter has just started) the min we will get is about 15 and in summer itis about 23, so I think I will be ok with staying with the four hours. Wow 10 that is cold. David

15th June 2007, 10:59	#1 (permalink)
dmo85471 New Member Current Rebreather/s: Sport Kiss Other Rebreather/s: Join Date: Oct 2005 Location: australia Posts: 73	Dolphin sorb fine or course HI ALL I need a little advice, has any one been using the fine grade SOFOLIME in there Dolphin? Have there been any changes in the breathing etc or any other changes? And how long have you been using it? The reason is that in Western Australia the 2-5mm is no easy to get and at a good price but the finer grade is a lot easer to get and I think cheaper. My local dive charter has been very good and has worked hard to keep me going, but to change would make it easer for him and me. Thanks for any advice David
(Online)

15th June 2007, 15:01	#2 (permalink)
4ster Steve Sprague Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Mar 2006 Location: Arlington, Washington Posts: 294	Re: Dolphin sorb fine or course This is not based on personal experience, but on posts from other dolphin divers on this forum. With the finer grade people report a higher WOB. The coarse stuff is better. If you do a search in this forum you will find recommendations. ------ This is from an old OMS catalog: Sofnolime, 8-12 mesh / 1.0 - 2.5mm particle diameter, 44lb keg $225.73 Sofnolime, 4-8 mesh / 2.0 - 5.0 mm particle diameter, 44lb keg $193.48 At least the 4-8 is cheaper! __________________ Steve "My problem is that I have trouble reconciling my gross habits with my net income." Errol Flynn
(Offline)

15th June 2007, 20:17	#3 (permalink)
dmo85471 New Member Current Rebreather/s: Sport Kiss Other Rebreather/s: Join Date: Oct 2005 Location: australia Posts: 73	Re: Dolphin sorb fine or course HI Steve Thanks for the reply and yes I have spoken to one person here that has used the fine grade and he did say that his WOB was a little harder but not much. I just wanted to no if any one here had used the fine. And as for cost I can get the fine cheaper here? Thanks for the reply. David
(Online)

16th June 2007, 06:20	#4 (permalink)
Freef Custom Title Disallowed! Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Jan 2006 Location: Land of the Freef, UK. Posts: 1,353	Re: Dolphin sorb fine or course At the depths the standard Dolph is used at I have found no difference in WOB between Drager Divesorb, 2-5mm or 1-2.5mm grade. Divesorb is easier to pack than 1-2.5, which needs a bit longer knocking flat time, and also seems better than 2-5mm in longevity. When I have used 2-5mm the hot spot is more diffuse and seems to travel faster. In the UK Divesorb is £110+ is per 20kg, whereas I can get Molecular Products stuff at around the £60 mark for the same amount. The drawback of 1-2.5mm is that the gratings in the Dolph aren't fine enough to guarentee that you won't get any drop through, but I have not had any get further that sitting in the bottom of the water trap, and then it is only one or two grains. __________________ David. Currently owner of two differently sized ankles.
(Offline)

17th June 2007, 12:26	#5 (permalink)
magentaseas New Member Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: May 2005 Location: London Posts: 56	Re: Dolphin sorb fine or course Hi Ive found the same as David and not had any problems with 1-2.5 Sofnolime. I had previously used Dragersorb and didnt notice any difference when I changed over. sharon
(Offline)

17th June 2007, 13:33	#6 (permalink)
dmo85471 New Member Current Rebreather/s: Sport Kiss Other Rebreather/s: Join Date: Oct 2005 Location: australia Posts: 73	Re: Dolphin sorb fine or course HI Sharon How long have you been using the fine grade for and how deep have you been. Thanks for the reply David
(Online)

18th June 2007, 07:20	#7 (permalink)
jar_uk1 New Member Current Rebreather/s: Inspiration Vision Dolphin Other Rebreather/s: Dolphin Join Date: Dec 2005 Location: Bracknell, UK Posts: 66	Re: Dolphin sorb fine or course I also use the fine grade sofnolime from molecular products and didnt notice any change in effort compared to dragersorb, Dives have been to 34-35m. John
(Offline)

18th June 2007, 12:29	#8 (permalink)
dmo85471 New Member Current Rebreather/s: Sport Kiss Other Rebreather/s: Join Date: Oct 2005 Location: australia Posts: 73	Re: Dolphin sorb fine or course Thanks for the replys and I think it is time to give it a try and find out for my self. I have been using sorb for a max of four hours on the bigger grade, so on the fine stuff how long have you gone on one fill? David
(Online)

18th June 2007, 22:05	#10 (permalink)
dmo85471 New Member Current Rebreather/s: Sport Kiss Other Rebreather/s: Join Date: Oct 2005 Location: australia Posts: 73	Re: Dolphin sorb fine or course The water temp here is 20 (winter has just started) the min we will get is about 15 and in summer itis about 23, so I think I will be ok with staying with the four hours. Wow 10 that is cold. David
(Online)

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