Rebreather Incident 2 - Incident

This video made by SKY news shows real footage of an incident where a rebreather diver suffers from Carbon Dioxide poisoning. The video takes the viewer through the incident, explaining how it came about and the lessons that can be learnt. Whilst the video is primarily aimed at rebreather divers, there are issues such as bail-out gas consumption, team size and rescue that may be useful to all divers.

Category:

Sports

Tags:

• diving
• rebreather
• carbon
• dioxide
• incident
• CCR
• AP
• Valves
• HSE
• SKY
• BDSG

[Tommo69O2]

Started using rebreathers in 1959, O2 and nitrox, Pendulam breathing, and we knew the limitations then on proto. Would like to know what the gas mix is, used in the movie. Seems as if training has slipped, some of the professional statements were a bit strange as well. And what happened to emergency surfacing?

[georgekeenan]

Carry some bailout, dipweed.

[FantasticBob7000]

Seems to me they should've had him on an octo right away before even beginning their ascent. Don't understand that part.

[97Arran]

Lucky it was only 20m if it was 60 with no stages i rekon he would not be here today for sure.

[Samurailord]

my guess would be the extended bottom time. If they are down there for a couple of hours they would've needed to carry many cylinders of nitrox with them.. too much baggage. Plus the Reb is more comfortable.

[h3lm92]

haha, look at 3.59 : Int ass of nitrox.

Yeah, that was childish...

- Anyway great video! =D

[Chuckjagermeister]

Ugh. if that is (I hope) a mock dead body. It's kinda tasteless. Why didn't they just use a mannequin or something? If it is a dead person they should blur it electronically or something. As a diver that's one of the grossest things you could ever encounter.

[Baddeco]

There's a lot of difference if you are a rebreather diver or open circuit. OC is damn reliable in comparison but tosses loads of limitations considering the dive time. One of the most intresing things is that buoancy control of rebreather closed circuit is different than OC. Thus if you are accustomed to the rebreather you probly want to use it. Also if you are videoing things rebreather makes less noise and no bubbles if it's CC. To complicate;There are also semi closed circuit rebreathers.. :)

[Chuckjagermeister]

Yeah, I didn't understand that either. I thought it was a deep dive in the beginning of this segment but it's at air-range depth. No need for a rebreather.

[rmeglath]

When diving a normal open circuit scuba tank all of the gas inhaled is exhaled into the surrounding water. The air we breathe is about 21% O2 when we exhale there is still about 16% O2 left which is then wasted. On a rebreather the exhalation is captured, the CO2 is chemically removed in the "scrubber" and additional O2 is added (it's a bit more complicated). The scrubber's life is limited as is the gas in the diluent and oxygen cylinders. Max time on that unit is about 4-6 hours I think.