Understanding Rebreathers - Part 2
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- เผยแพร่เมื่อ 24 ก.ค. 2024
- In this episode we delve into rebreather safety and the motivations for choosing a CCR over open circuit SCUBA. Rebreather diving carries extra risks, and the decision to pursue it requires some careful consideration.
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Thanks Richard! I’m just starting to look into rebreathers, and your videos are very helpful. Glad to find info that is not a sales pitch for a particular model. Now to watch your next video…
Watching your footage on the Pearse Resurgence absolutely captivated me. Been going through all your other videos, and despite me probably never diving myself, I find these videos super interesting! Keep it up!!
Grande Richard Harris,aqui no Brasil vc tem muitos fãs meu amigo,vc e os outros mergulhadores foram heróis no resgate dos meninos da Tailândia abraços 🇧🇷🇧🇷
These two videos were really informative. A great introduction to my next evolution in diving.
Thanks for the knowledge sharing.
Thanks mate!
Thanks for good information, just looking in to rb. This helped alot, thanks
I’m really enjoying your videos. Good work! As an airline pilot, daily user of checklists and a risk management student I am happy to see the use of checklists, pre dive checks, rigorous periodic maintenance of equipment...many of the necessary tools that keep aviation safe too. I’ll check the article mentioned and the book about human factors and decision making, another big subject in aviation. This video really made me consider rebreathers and caves diving, had my first “experience” in Tulum - Mexico last year, I remember getting ready for a dive at “the pit” down to only 28m with an open circuit when all the tech divers parked next to us with all the cool gear, they said they were not going too deep this time, only 100m...I was quite impressed and a bit scared by all that gear, I’m glad to hear the safety side of it.
Thanks Gabriel, glad you found it interesting. Medicine and diving have learnt a great deal from aviation, but we are still well behind with uptake of checklists etc. Good luck with your dive progression!
Been loving the great insight on things lately!
Thanks for the no-nonsense, quality knowledge coming from top tier practitioner (and fellow Triton diver :) )
thank you so much for doing this. the scuba shop guy wants to sell me a rebreather, the instructor wants to sell me a class, no one really tells you the pros and cons of a rebreather. Having said that I already bought mine and am half way through my classes. I would like to think I fall into the meticulous diver not the sloppy diver but that's my opinion of myself.
Thank you for sharing the knowledge. I am very much into oxygen rebreathers, for example LAR VII, and my Kiss Classic. I enjoy your Videos a lot. I hope you provide a lot more content, that is just wonderful to learn from. Thank you!
Rich, thanks for the videos on the rebreathers. I been thinking about switching over to a rebreather to stay longer on deeper wrecks. You did a great job breaking down how they work and options you can have.
Thanks, more to come!
Thanks for another excellent video!
Checklist fan! As an OC diver one of the first things I created was a checklist for our group. It has all the basics and a couple drysuit related checks, it is so handy!
Brilliant!
Would you care to share that checklist?
Thanks, can't wait to see what's next!
Wow, so many thoughts. First, thank you for this series, the information was amazing and perfect I think for beginners. I feel much better educated now to the point where I could make the next decision. This video was great and I loved the fact that you touched on knowing who you are and then tied in the why. On the con side, I think you talked me out of a rebreather but at the same time also made me a better diver. My initial thought was tech toy, cool factor, and to go deeper into the caves around where I live. The unexplored ones are past 60M. However when I look at cost, task overload potential, the statistics, and a variety of things you pointed out, I’m thinking side mount is best for me, at least right now. I sincerely thank you for your guidance Richard, really really great stuff.
Your comment makes me very happy. Whilst I never want to put someone off diving I do want people to be safe and be honest about their motivations. Maybe you will revisit the idea in time. Enjoy your diving!
@@DrHarryH Ok my friend… you got me 😄 I’m not a rebreather diver. But first, I heard you may be in Cozumel coming up? If so, I’m disappointed, I found out too late for me to go, but I would have jumped on the chance to meet and say thanks. So why the change? My explorations are taking me deeper and longer than air is recommended for. I’m not doing anything near as complex as you, but I hooked up with KISS and have started the journey. I’m still building up my time and skill set with air diluent but the goal is to be trimix, most likely around the 70m mark.
I mean now… as in I am now a rebreather diver lol… fat fingers
@@meridacavediver Awesome! Yes I will be in Cozumel, sorry we can't meet for a chat and a dive.
Looking int CCR as well. Most likely next year either KISS OR HOLLIS PRISM 2
Hi, thanks a lot for this series, very easy to understand yet still covers some important and complex topics. Sorry if this has an obvious answer, but for your deep dives would you consider Helium to be your diluent gas? Thanks
Yes, beyond 30-40m we tend to use helium based gases. We aim for a gas that has a percentage of oxygen that will provide just a bit lower that the desired Set Point at maximum depth, and a helium content that will minimise narcosis. E.g. for a 100m dive, 10% oxygen gives a PO2 of 1.1 at max depth which is fine. A helium content of 60% will give an equivalent air depth of about 30m. So Trimix 10/60 is a reasonable choice.
why don't the HUD's computer have a digital checklist you have to complete for the most vital checks could be a good addition
Actually there have been rebreathers made with inbuilt checklists in the computers.
Divesoft provide a digital checklist on their mobile app. That seems to make a lot of since. We all have our mobiles handy and it allow you to read the list on your mobile device as you manipulate the small menu selections on your rebreather handsets. Cheers, #SeattleRingHunter
Being new to rebreather diving, very new, after 20 yrs OC. I can see why, the more complex the more likely a mistake. What is the pro v con of eccr v mechanical? And HUD v nerd? I am very meticulous but they seem fussy and fragile
Go watch the 1st video on rebreathers, it goes into pros-cons of eCCR and mCCR, or the differences at least
The equipment is surprisingly robust. In caves and on boats the gear gets knocked around a lot and it doesn't break all that often. I plan to talk more about eCCR and mCCR in Part 3.
Check lists help but nothing can replace experience. And with experience comes confidence. And that brings us complacency. Tech diving is dangerous. Rebreathers are One of the most dangerous piece of equipament that exists, there have been many deaths of top level ( world class ) divers who died using a rebreather just because they found a restriction and had to work a bit harder. In my opinion theres not enough slack or redundancy, rb are razor blades. Pretty sure there are more fatalities using rebreathers than there are in saturation diving. I like the concept but people using rb at this moment are just being very usefull for statistic purposes and to help developing rb . No doubt this Will be the future but i dont see any manufacturer paying me to risk my live as a tester. And im not doing it for free 😃
If your shallow water diving and you aren't looking for the "perfect" shot in your underwater photography or films with bubbles getting in the way, then open circuit is the logical choice.