some pictures :-) (rEvo extended with radials)

**Steve** · 12th June 2007, 09:38

Quote: (Originally Posted by paulraymaekers)

what the pictures show: well at least that scrubber 2 is still active :-) (as I continued using it as primary scrubber for the next 3.5 hours, till end of the trip) (after that, I binned it: purple around central tube for +/- 2 cm) (I also binned the second scrubber then: there was not one purple grain in it: this means that the first one (in the 3.5hour test) (that is the second one in the 9.5 hour test) was stil active!

regards
paul

No it doesn't. It isn't telling you anything. The colour indicator has proven itself to be no indicator at all. Different tubs, different days, different dives, different grains of sorb etc give different results.

There is no substitute for propper testing that measures CO2 levels. This sort of testing is naive and potentially dangerous.

paulraymaekers · 12th June 2007, 09:50

Quote: (Originally Posted by Steve)

This sort of testing is naive and potentially dangerous.

as you wish...

that is why I posted in my first text: do not do this yourself!!

regards
paul

abowie · 12th June 2007, 10:47

Quote: (Originally Posted by paulraymaekers)

hello,

sorb can take more than 150l CO2/kg

Not according to the manufacturers.

Mike · 12th June 2007, 10:48

Quote: (Originally Posted by Steve)

For what it is worth I have used a Meg can for 7 hours on a single dive

Quote: (Originally Posted by Steve)

There is no substitute for propper testing that measures CO2 levels. This sort of testing is naive and potentially dangerous.

As I do or as I say?

Chill Steve -if people want to do slightly dumb things to see what happens, who cares? It's a data point to consider, not an endorsement! I'm sure as hell not going to do 11 hours on the prism, but knowing that someone has makes me pretty confident to do 5 or so.
The recent trip was the first time i've used indicating sorb - even if it's not trustworthy it was interesting to see how the scrubber looked with different amounts of time on it. The fact that the indicator matched what would have been predicted was nice - if I got out and the scrubber was all purple I would have been concerned... ditto if there was no change or obvious channelling.

Bit like having a CO2 sensor in the loop really, completely useless as it only tells you that you are having a CO2 problem as it occurs, but kinda cool anyway.

Mike

Gilles · 12th June 2007, 16:07

Quote: (Originally Posted by paulraymaekers)

this is the reason that dual scrubbers have an advantage: you can use up scrubber 1 almost for 100%, withouth big safety issues, because there is still scrubber nr 2

I also notice that the purple is far less clear in the axial than in the radial scrubber: must have to do with the 'heat-keeping' properties of the radial

what the pictures show: well at least that scrubber 2 is still active :-) (as I continued using it as primary scrubber for the next 3.5 hours, till end of the trip) (after that, I binned it: purple around central tube for +/- 2 cm) (I also binned the second scrubber then: there was not one purple grain in it: this means that the first one (in the 3.5hour test) (that is the second one in the 9.5 hour test) was stil active!

regards
paul

Paul;

Are the two scrubbers inter-changeable? (Can you throw out the used sorb from the upstream can, put the downstream can in the upstream position and put the newly re-filled can in the downstream position?)

If so, could be a nice way to more safely be efficient with sorb.

Mikel-Deko · 12th June 2007, 16:19

Hi Paul

Great improvement of a very good Rebreather

CONGRATULATIONS

But, just a little question.
I know that you made a test but it is not a little bit escary to dive twice below 100 mtrs with the same sorb?

I never dive twice a cannister with trimix in my inspi

.

Best.

Mikel

jmhardingjr · 12th June 2007, 16:27

Quote: (Originally Posted by Gilles)

Paul;

Are the two scrubbers inter-changeable? (Can you throw out the used sorb from the upstream can, put the downstream can in the upstream position and put the newly re-filled can in the downstream position?)

If so, could be a nice way to more safely be efficient with sorb.

That's how the rEvo works. There is a video link somewhere that shows a clip of them doing exactly that. A full scrubber swap/change in something on the order of 30 or 40 seconds.

Paul, can you provide the link? It truly is impressive.

Stephane · 12th June 2007, 16:33

Here it is:

YouTube - how to change sorb.... in 38 seconds!

decoweenie · 12th June 2007, 16:46

Quote: (Originally Posted by Mikel-Deko)

I never dive twice a cannister with trimix in my inspi

Could you ship your "used" sorb to me ?

Paul Evans · 12th June 2007, 16:52

Quote: (Originally Posted by jmhardingjr)

That's how the rEvo works. There is a video link somewhere that shows a clip of them doing exactly that. A full scrubber swap/change in something on the order of 30 or 40 seconds.

Paul, can you provide the link? It truly is impressive.

Why is it so impressive??

If I had a PRE PACKED spare scrubber I could change mine in less time. Not that it matters a bit anyway. just a nice marketing angle.

Paul R, no offence M8, I like the unit

12th June 2007, 09:38	#11 (permalink)
Steve Ladies bring a plate Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Classic Kiss MK 15.X Home Build Join Date: Feb 2005 Location: Perth - Australia Posts: 1,124	Re: some pictures :-) (rEvo extended with radials) Quote: (Originally Posted by paulraymaekers) what the pictures show: well at least that scrubber 2 is still active :-) (as I continued using it as primary scrubber for the next 3.5 hours, till end of the trip) (after that, I binned it: purple around central tube for +/- 2 cm) (I also binned the second scrubber then: there was not one purple grain in it: this means that the first one (in the 3.5hour test) (that is the second one in the 9.5 hour test) was stil active! regards paul No it doesn't. It isn't telling you anything. The colour indicator has proven itself to be no indicator at all. Different tubs, different days, different dives, different grains of sorb etc give different results. There is no substitute for propper testing that measures CO2 levels. This sort of testing is naive and potentially dangerous. __________________ WARNING: I contain occasional coarse language, extreme sexual references, nudity, and adult themes, which may offend some people - Usually churchy types.
(Offline)

12th June 2007, 09:50	#12 (permalink)
paulraymaekers rEvo's daddy Current Rebreather/s: rEvo Other CCR Home Build Other Rebreather/s: rEvo Other CCR Home Build Join Date: May 2005 Location: belgium Posts: 1,578	Re: some pictures :-) (rEvo extended with radials) Quote: (Originally Posted by Steve) This sort of testing is naive and potentially dangerous. as you wish... that is why I posted in my first text: do not do this yourself!! regards paul __________________ www.rEvo-rebreathers.com .... the earth is flat, Elvis is alive, and radial scrubbers give longer dwell time than axials...
(Online)

12th June 2007, 10:47	#13 (permalink)
abowie Fighting Girl Current Rebreather/s: Sport Kiss Other Rebreather/s: Join Date: May 2005 Location: Land of Oz Posts: 574	Re: some pictures :-) (rEvo extended with radials) Quote: (Originally Posted by paulraymaekers) hello, sorb can take more than 150l CO2/kg Not according to the manufacturers. __________________ Andrew Bowie Rebreather-friendly Buddy
(Offline)

12th June 2007, 10:48	#14 (permalink)
Mike Prism 'prentice Current Rebreather/s: Prism Topaz Other Rebreather/s: Inspiration Classic Evolution Join Date: Feb 2005 Location: Melbourne Posts: 332	Re: some pictures :-) (rEvo extended with radials) Quote: (Originally Posted by Steve) For what it is worth I have used a Meg can for 7 hours on a single dive Quote: (Originally Posted by Steve) There is no substitute for propper testing that measures CO2 levels. This sort of testing is naive and potentially dangerous. As I do or as I say? Chill Steve -if people want to do slightly dumb things to see what happens, who cares? It's a data point to consider, not an endorsement! I'm sure as hell not going to do 11 hours on the prism, but knowing that someone has makes me pretty confident to do 5 or so. The recent trip was the first time i've used indicating sorb - even if it's not trustworthy it was interesting to see how the scrubber looked with different amounts of time on it. The fact that the indicator matched what would have been predicted was nice - if I got out and the scrubber was all purple I would have been concerned... ditto if there was no change or obvious channelling. Bit like having a CO2 sensor in the loop really, completely useless as it only tells you that you are having a CO2 problem as it occurs, but kinda cool anyway. Mike __________________ Open ....... Closed Mind ........ Loop
(Offline)

12th June 2007, 16:07	#15 (permalink)
Gilles Worship the feminine Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Sep 2005 Location: Den Haag (Netherlands) Posts: 762	Re: some pictures :-) (rEvo extended with radials) Quote: (Originally Posted by paulraymaekers) this is the reason that dual scrubbers have an advantage: you can use up scrubber 1 almost for 100%, withouth big safety issues, because there is still scrubber nr 2 I also notice that the purple is far less clear in the axial than in the radial scrubber: must have to do with the 'heat-keeping' properties of the radial what the pictures show: well at least that scrubber 2 is still active :-) (as I continued using it as primary scrubber for the next 3.5 hours, till end of the trip) (after that, I binned it: purple around central tube for +/- 2 cm) (I also binned the second scrubber then: there was not one purple grain in it: this means that the first one (in the 3.5hour test) (that is the second one in the 9.5 hour test) was stil active! regards paul Paul; Are the two scrubbers inter-changeable? (Can you throw out the used sorb from the upstream can, put the downstream can in the upstream position and put the newly re-filled can in the downstream position?) If so, could be a nice way to more safely be efficient with sorb. __________________ Gilles http://www.dirrebreather.com
(Offline)

12th June 2007, 16:19	#16 (permalink)
Mikel-Deko RBW Member Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Other CCR Join Date: Jul 2005 Location: Basque Country -Sp- Posts: 470	Re: some pictures :-) (rEvo extended with radials) Hi Paul Great improvement of a very good Rebreather CONGRATULATIONS But, just a little question. I know that you made a test but it is not a little bit escary to dive twice below 100 mtrs with the same sorb? I never dive twice a cannister with trimix in my inspi . Best. Mikel __________________ Mikel-Deko Basque Country www.olatu.net "DIR is the nanny state for divers who cannot think on their own" Ron Micjan
(Online)

12th June 2007, 16:27	#17 (permalink)
jmhardingjr Son of a Sailor Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Other CCR Home Build Join Date: Sep 2005 Location: . . . this one particular harbor . . . Posts: 200	Re: some pictures :-) (rEvo extended with radials) Quote: (Originally Posted by Gilles) Paul; Are the two scrubbers inter-changeable? (Can you throw out the used sorb from the upstream can, put the downstream can in the upstream position and put the newly re-filled can in the downstream position?) If so, could be a nice way to more safely be efficient with sorb. That's how the rEvo works. There is a video link somewhere that shows a clip of them doing exactly that. A full scrubber swap/change in something on the order of 30 or 40 seconds. Paul, can you provide the link? It truly is impressive. __________________ ". . . the sea's in my veins, my tradition remains, I'm just glad I don't live in a trailer . . ."
(Offline)

12th June 2007, 16:46	#19 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,487	Re: some pictures :-) (rEvo extended with radials) Quote: (Originally Posted by Mikel-Deko) I never dive twice a cannister with trimix in my inspi Could you ship your "used" sorb to me ? __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
(Offline)

12th June 2007, 16:52	#20 (permalink)
Paul Evans Freedom is the Key. Current Rebreather/s: Megalodon Other Rebreather/s: Megalodon Join Date: Oct 2006 Location: London Posts: 150	Re: some pictures :-) (rEvo extended with radials) Quote: (Originally Posted by jmhardingjr) That's how the rEvo works. There is a video link somewhere that shows a clip of them doing exactly that. A full scrubber swap/change in something on the order of 30 or 40 seconds. Paul, can you provide the link? It truly is impressive. Why is it so impressive?? If I had a PRE PACKED spare scrubber I could change mine in less time. Not that it matters a bit anyway. just a nice marketing angle. Paul R, no offence M8, I like the unit __________________ "Freedom is what you do with what's been done to you." Jean-Paul Sartre "Any time anyone says, 'there is only one right way to do this' your bullshit meter should be pegged. Its a presumptive statement, made by a person who fears being proved wrong." Bill Gavin.
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

LinkBacks (?) LinkBack to this Thread: http://www.rebreatherworld.com/revo-rebreather/12381-some-pictures-revo-extended-with-radials.html
Posted By	For	Type	Date
rEvo Rebreather [Archive] - Page 2 - Rebreather World	This thread	Refback	5th May 2008 11:52
rEvo Rebreather [Archive] - Rebreather World Forums	This thread	Refback	25th July 2007 08:58
some pictures :-) (rEvo extended with radials) - Rebreather World Forums	This thread	Refback	12th June 2007 11:00