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Forum: Rebreather Design & Operation

Forum to discuss how and why Rebreathers are designed as they are and how key components operate.

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  1. Forum to discuss O2 and CO2 cells.

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  2. Forum to discuss all aspects of Scrubbers, Absorbents and Scrubber Architecture.

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  3. Forum to discuss home built CCR accessories

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    • Threads: 66
    • Posts: 684

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  1. Sticky Thread Sticky: An An attempt to clear the misconception on CMF

    Below there is a summary of what has been wrote about this issue. A greatly misunderstood and misapplied notion is that of “choked flow”, also...

    Started by diveoceanos‎, 1st January 2010 22:01
    3 Pages
    1 2 3
    • Replies: 23
    • Views: 7,999
    17th February 2010, 12:36 Go to last post
  2. Sticky Thread Sticky: Rebreather Testing Data

    Below you'll find a collection of links to rebreather testing data and results that have been published. This thread is not to discuss and argue...

    Started by caveseeker7‎, 29th March 2008 11:55
    • Replies: 0
    • Views: 3,525
    29th March 2008, 11:55 Go to last post
  3. Sticky Thread Sticky: Rebreather Comparison Chart

    Here you can see attached the poster that caused such a buzz at the dive show. (click on it to zoom in) Kevin tells me that he is willing to...

    Started by schford‎, 14th October 2007 20:53
    11 Pages
    1 2 3 4 5 ... 11
    • Replies: 107
    • Views: 40,945
    19th October 2007, 16:24 Go to last post
  1. The GEM secret?

    Hi For my pre-CCR days, I was fascinated by the simple design of the RB80 PASCR. However, in the end i decided that CCR was my choice of system. ...

    Started by depth‎, 14th June 2011 07:17
    2 Pages
    1 2
    • Replies: 11
    • Views: 3,136
    16th June 2011, 00:13 Go to last post
  2. Rebreather on Everest

    Guys I have been experimenting the last few years with a home built high altitude rebreather. This year I tested it at 26,000 feet on Everest. There...

    Started by spinflyer‎, 27th September 2009 21:57
    7 Pages
    1 2 3 4 5 ... 7
    • Replies: 63
    • Views: 15,274
    5th April 2011, 15:13 Go to last post
  3. O2 consumption

    With all the talk of CMF or not, for those of you who aren't afraid to use one, just how much O2 are others metabalizing. The starting point...

    Started by PeterVICEG‎, 8th March 2011 04:07
    2 Pages
    1 2
    • Replies: 16
    • Views: 3,661
    4th April 2011, 18:29 Go to last post
  4. The Bucket Rebreather

    Hi all I have been toying with the idea of doing a "dummies guide to rebreathers" for a while. I have been using the Bucket Rebreather as an...

    Started by jsevland‎, 1st May 2008 22:16
    3 Pages
    1 2 3
    • Replies: 25
    • Views: 5,128
    24th March 2011, 05:45 Go to last post
  5. PPO2 Track Data

    Dear UTD Divers, I am very interested in seeing some downloads from your Predator Displays on how your PO2 tracks throughout the dive. If you can...

    Started by JasonF‎, 4th March 2011 16:10
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 3,829
    8th March 2011, 00:10 Go to last post
  6. Ice Diving and Cold Water Advice Needed

    Hi Guys, Having recently completed my rebreather training in the frigid waters of Florida :p, I'll be making my first rebreather dive at home in...

    Started by Steve Schultz‎, 27th February 2008 13:48
    3 Pages
    1 2 3
    • Replies: 23
    • Views: 4,005
    16th February 2011, 14:57 Go to last post
  7. NEW Oxygen Solenoid Valve

    Does anyone has any info about the NEW Oxygen Solenoid Valve from AP? This is on their website: ...

    Started by Boebe‎, 3rd January 2010 22:22
    • Replies: 5
    • Views: 3,321
    5th February 2011, 15:16 Go to last post
  8. Silent Diving Tek Frame and Inspiration

    I've recenty bought myself a silent diving tek frame to use with my inspiration classic's scrubber and electronics. I haven't yet bought any first...

    Started by Pierre Lotz‎, 25th May 2010 22:22
    • Replies: 1
    • Views: 1,427
    5th February 2011, 01:07 Go to last post
  9. New Heads Up Display

    I wanted to give a preliminary showing of a Heads Up Display that I have been developing for the last 2 years. I have been diving with this display...

    Started by bobmaggi‎, 26th March 2010 02:20
    7 Pages
    1 2 3 4 5 ... 7
    • Replies: 69
    • Views: 16,519
    17th January 2011, 10:08 Go to last post
  10. Kalrez vs. Viton

    Hello All Can any of our clever engineering types please tell me the difference between Viton and Kalrez o-rings and their relative suitability...

    Started by Deep Smeg‎, 22nd November 2010 00:48
    • Replies: 4
    • Views: 16,322
    23rd November 2010, 13:26 Go to last post
  11. 1:st stage regulator for RB?

    Hi, I have seen that some rebreathers use the APEKS US4 (unsealed version of the standard DS4) as diluent and oxygen 1:st stage regulator. To...

    Started by maxnil‎, 17th November 2010 22:24
    2 Pages
    1 2
    • Replies: 11
    • Views: 3,555
    21st November 2010, 11:29 Go to last post
  12. Colorimetric end-tidal CO2 detectors

    Being a med-student a just coming off an ITU attachment i came across a product i thought would interest rebreather world. It is a small plastic box...

    Started by nobody‎, 18th August 2010 10:16
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 8,409
    30th August 2010, 01:22 Go to last post
  13. Advantages and Disadvantages of Oxigen Injection on Inhale CL

    I'm wondering what were the advantages (and disadvantages as well) Oxigen Injection on inhale side of the loop. The only advantages I can see is...

    Started by RogerioWagner‎, 27th July 2010 19:09
    • Replies: 4
    • Views: 2,440
    27th July 2010, 20:37 Go to last post
  14. Extending a MFO/CMF capabilities

    Hi Gill Envy gave an idea on extending the depth capabilities of a CMF/MFO aka "leaky valve" I quote his post: "the morning's ponder: is...

    Started by Johan Pretorius‎, 16th July 2010 17:46
    4 Pages
    1 2 3 4
    • Replies: 36
    • Views: 5,472
    23rd July 2010, 18:45 Go to last post
  15. UTD mCCR without orifice

    Hi members It occored to me that the new MX Series mCCR from UTD does not utilize a orifice and all O2/DIL is added manually with push-botton...

    Started by depth‎, 14th July 2010 08:06
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 53
    • Views: 8,127
    21st July 2010, 00:32 Go to last post
  16. Against Mass Flow Orifice (MFO)

    Just saw the copied post below by AG (from this discussion: COPIS - Unified Team Diving). I have no affiliation with this RB and am just curious...

    Started by rainer_‎, 14th July 2010 23:10
    8 Pages
    1 2 3 4 5 ... 8
    • Replies: 71
    • Views: 9,485
    18th July 2010, 23:18 Go to last post
  17. vandagrph Sensors

    Hi Everyone There is a guy selling Vandagraph sensors on ebay I have had nothing at all to do with these what are they like are they any good? ...

    Started by chewie525‎, 14th July 2010 06:03
    • Replies: 5
    • Views: 1,149
    15th July 2010, 10:18 Go to last post
  18. John Falcone's custom ADV for the Classic KISS.

    Anyone know where I can find one of these ( John Falcone's custom ADV for the Classic KISS)? It appears the website is down?

    Started by dbramley‎, 18th December 2009 21:47
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 54
    • Views: 10,038
    7th July 2010, 20:42 Go to last post
  19. Exhale Loop Gargle

    Anyone got a good technique for moving that "tiny" - but annoying -bit of exhale gargle noise out of the loop and into the CL? It's a minor PITA to...

    Started by w ripley‎, 10th June 2010 15:19
    2 Pages
    1 2
    • Replies: 11
    • Views: 2,001
    11th June 2010, 22:37 Go to last post
  20. Argon and Can Light mount for Deep Outdoors harness

    I am finishing up my KISS Rebreather course in a few weeks and had some questions on how to mount a few things. I should start by saying that I have...

    Started by Garibaldi‎, 2nd June 2010 14:51
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 6,631
    10th June 2010, 09:38 Go to last post

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