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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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    • Threads: 224
    • Posts: 3,054
  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: 8,144
    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: 3,586
    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: 41,936
    19th October 2007, 16:24 Go to last post
  1. ADV functionality from modified BOV

    wondering if anyone has experimented with poking a hole in a BOV barrel so that when in closed circuit, neg pressure would still trigger the BOV's...

    Started by OceanOpportunity‎, 21st October 2017 03:57
    • Replies: 4
    • Views: 741
    21st October 2017, 21:21 Go to last post
  2. rear mounted counter lungs for inspo

    Just wondering if anyone has got any experiance with these bm counterlungs? Diving Equipment - North East | TDT - Technical Diving Training. They...

    Started by wayne k‎, 14th March 2013 23:54
    2 Pages
    1 2
    • Replies: 12
    • Views: 6,222
    10th September 2017, 07:58 Go to last post
  3. Custom Extendair?

    I've heard rumors of cartridges made to custom specs (by individuals with access to sheet materials??). The Kiss Spirit/Sidewinder needs this on...

    Started by Danseur‎, 6th December 2016 05:45
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 5,125
    16th December 2016, 03:04 Go to last post
  4. Are mCCR's safer than eCCR's?

    Statistics prove that divers are safer with mCCR's, but this could be for a number of reasons, whether it is the rebreather or the diver. Will...

    Started by chrismc‎, 15th August 2008 12:46
    17 Pages
    1 2 3 4 5 ... 17
    • Replies: 168
    • Views: 37,186
    16th September 2016, 11:16 Go to last post
  5. KISS Classsic water ingress and control

    I can hear the purists cringing in horror but has anyone done anything to enhance a KISS Classic's water control or flood recovery abilities? Like...

    Started by Goferrin99‎, 28th May 2016 11:21
    • Replies: 2
    • Views: 1,631
    29th May 2016, 17:07 Go to last post
  6. APDiving OPV User Serviceable?

    Hey - I've got minor leakage (negative) on my C/L OPV. It will pass the 2 minute test (but when the unit is wet - I can hear a slight gurgling...

    Started by bl6394‎, 14th April 2016 16:47
    • Replies: 4
    • Views: 1,277
    16th April 2016, 12:19 Go to last post
  7. Kiss Sport Apeks DS4 1st stage intermediate pressure?

    Hi, Time for fully servicing my rig. Tanks hydro tested and now working on 1st stages. I wanted some information on intermediate pressure...

    Started by SMPL‎, 11th April 2016 23:34
    • Replies: 5
    • Views: 1,903
    12th April 2016, 19:03 Go to last post
  8. Prism 2 Setpoint......

    When completing my training on the Prism 2 for a dive down to 120ft we jumped in with the setpoint at .7 and at 70ft we switched to 1.3 for the...

    Started by shortkidd‎, 4th March 2016 03:49
    • Replies: 4
    • Views: 1,943
    5th March 2016, 07:26 Go to last post
  9. Dive CAN/ISCAN/CAN Bus - what's the fuss?

    My understanding of what CAN bus is and what it does is limited. I know Revo, ISC and Hollis all are using some form of it on their rebreathers. Does...

    Started by sea_ledford‎, 2nd May 2014 17:57
    4 Pages
    1 2 3 4
    • Replies: 37
    • Views: 15,823
    8th December 2015, 22:58 Go to last post
  10. Po2 setpoint

    I dive a revo 111 micro. Was just wondering how many of you guys run a 1.6 during deco from say 30 feet and up. Also when diving in the 130 feet and...

    Started by ncdeepdiver‎, 23rd August 2015 13:36
    2 Pages
    1 2
    • Replies: 12
    • Views: 4,705
    25th August 2015, 02:14 Go to last post
  11. Liberty cell validation

    This is just pure curiosity. I am curious as to how the Liberty CCR uses the helium sensors to validate the O2 cells. I understand the math as to I...

    Started by abscuba‎, 28th May 2015 19:26
    liberty
    • Replies: 6
    • Views: 2,107
    1st June 2015, 03:15 Go to last post
  12. Exclamation SiTech Important information regarding valves on rebreathers

    I am sure this is already known (it was also on scuba board but I could not find it here): ...

    Started by fsardone‎, 2nd January 2015 22:35
    • Replies: 3
    • Views: 2,324
    5th January 2015, 23:28 Go to last post
  13. One Way Valves

    Hi All, Lately I've been musing on the less exciting RB parts that are nevertheless very important, I wanted to ask if anyone has come across any...

    Started by Ben Field‎, 24th November 2011 15:23
    2 Pages
    1 2
    • Replies: 11
    • Views: 5,560
    23rd October 2014, 07:52 Go to last post
  14. Breathing set clipped to drysuit?

    A long time ago I heard of a sort of frogman's diving kit with a drysuit, and the breathing set did not have a full harness, but was fastened to...

    Started by Anthony Appleyard‎, 1st September 2012 15:58
    • Replies: 1
    • Views: 1,542
    14th September 2014, 09:28 Go to last post
  15. Northern Diver clamp vs pony. Metalsub

    Northern Diver clamp vs pony. Metalsub clamp Has anyone used both systems? Are these systems fit such elements from Metalsub to ND and ND to...

    Started by joker‎, 26th January 2014 17:25
    • Replies: 7
    • Views: 2,312
    28th January 2014, 01:58 Go to last post
  16. Corrosion in classic inspiration wiring loom

    Hi Anyone experienced corrosion of the wiring loom in a 4yr + classic inspiration wiring loom? I've just sent the head back for a service...

    Started by Divejunkie‎, 30th November 2005 18:54
    • Replies: 8
    • Views: 3,338
    8th January 2014, 21:53 Go to last post
  17. Oxygen compatible grease

    I was wondering if anybody has used any other brands of o2 compatible grease? I came across a product called Krytox, it says it is o2 safe. There...

    Started by Euge‎, 29th March 2007 18:57
    3 Pages
    1 2 3
    • Replies: 22
    • Views: 23,049
    7th November 2013, 21:09 Go to last post
  18. Please identify rebreather

    http://1.bp.blogspot.com/-ZgFZDitFghM/T82RcgIcuLI/AAAAAAAAEIo/ltN1Mq0ggRI/s1600/Rebreather+poseidon.jpg A Google search for "rebreather" in image...

    Started by Anthony Appleyard‎, 27th October 2013 08:15
    2 Pages
    1 2
    • Replies: 17
    • Views: 5,197
    29th October 2013, 13:14 Go to last post
  19. Override depth limitation with CMF.

    This is a theoretical post; only just to check with you if the idea is feasible: I propose to have a dual O2 injection with the same Reg in order...

    Started by madvic‎, 19th September 2013 11:00
    5 Pages
    1 2 3 4 5
    • Replies: 49
    • Views: 8,163
    27th September 2013, 14:29 Go to last post
  20. I woul;d like to hear reasons and opinions for this.

    What are the pros and cons for having the electronics battery inside the loop of a RB vs. having it external? What are the pros and cons of having...

    Started by Dsix36‎, 1st April 2013 23:38
    10 Pages
    1 2 3 4 5 ... 10
    • Replies: 90
    • Views: 10,452
    27th May 2013, 22:41 Go to last post

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