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I'm presenting a rebreather safety webinar at 1930hrs (UK Time) 5th January 2021 titled: Increasing the probability of surviving loss of consciousness when using a rebreather I appreciate the time zone will not be suitable for many, however for those who may wish to participate, the link can...

My mask strap is worn under my hood and the BOV is pulled down onto upper chest. Reference venting the loop on ascent whilst on OC, never tried venting from the mouthpiece on the chest.

Incredible, it is questionable whether they should be at 40ft let alone 400ft. Well at least I can thank these intrepid explorers for a great training video on what CCR diving should not be. If this typifies the standard of rebreather diver produced following a Mod 3 class then the industry is...

Thanks Baz for your insight. Rgds P

Yes a reasonable observation Nick - is this not true though for all units rCCR or tCCR? It would be interesting to get a feel for how many Instructors actually use rCCRs for their own diving out with training?

With the rCCR concept now having been around 5 years or so, I'm interested in an industry perspective on how the whole concept of the rCCR has developed and taken off, or not as the case may be. If it has not taken off then why not? Cost? Complexity? Too heavy a training and maintenance...

Hi, taking gas from a angle source for both wing and drysuit is a single point failure. For simplicity take wing inflation from the dil, drysuit inflation from the small air suit inflate cylinder and plumb your BOV if you have one directly into an off-board bailout cylinder. Here is some...

Hi All My good friend and dive buddy renowned shipwreck diving author Rod Macdonald (www.rod-macdonald.co.uk) and myself (www.haynesmarine.com) are hosting a special Wreck-X (www.wreck-x.com) Scapa Flow Shipwreck Diving and Maritime History Week this coming April. Diving will be conducted from...

Best of luck with the expedition mate. Would have been keen to attend but got an expedition on myself over this period. HNY Rgds Paul

Just drop me an email anytime ;-)

Cheers - maybe you'll can join us at some point ;-) Rgds Paul

Hi All If you, family, friends or clientele would like to participate in adventurous diving expeditions to some of the world's best shipwreck destinations, please see below a press announcement and link to the Wreck-X inaugural newsletter...

Nice one, what country?

Just completed some work at the US Navy Experimental Diving Unit demonstrating a range of military rebreathers for a client followed by a few days in cave country with my good friend Gregg Stanton of Wakulla Dive Centre. Anyway yesterday this culminated in a 70m splash into Eagles Nest, which...

I encourage you to have a read of the following from the downloads section of my web-site WWW.HAYNESMARINE.COM: http://www.haynesmarine.co.uk/images/stories/A%20Survival%20Guide%20To%20Rebreather%20Diving%20Nov%202011.pdf Rgds Paul

Great myth buster Randy, as I state in my Survival Guide To Rebreather Diving (www.haynesmarine.co.uk / downloads): Behavioural researchers have determined that it generally takes twenty repetitious days to turn a skill into habit, you absorb only 25% of what you are taught, an additional...

In answer to your original post, if the airway is protected and water is not aspirated then you will either ascend or descend depending upon your state of buoyancy at that time (most likely descend). You will then continue to be subject to the insult resulting from what ever inappropriate gas...

Hi For those who might have been present, I gave a presentation at Oztek last month titled Increasing The Probability of Surviving Loss of Consciousness Underwater When Using a Rebreather. This presentation was based upon a paper I hope will be published this year in one of the diving and...

Hi Michael, the study covered a 30 year period. Statistically the actual number of incidents were low. Rgds Paul

Looks good Gar. See you inside a shipwreck at some point ;-)