Shutting the o2 and then Feathering the o2 right thing to do. Good reaction. The only thing I would question is whether there is a buzzer and why the HUD weren’t going mental.

@Rings890

3 жыл бұрын

Pagani Zonda the Meg does not have an audible warning (no buzzer, like some rebreathers do). The HUD (Heads Up Display) on the Meg is a red, orange, and green light near the divers eye. It would have been blinking a rapid & continuous green light to warn the diver of a high PPO2 (partial pressure of oxygen). I believe it was blinking, but hard to see in the light from the video.

@SeattleRingHunter

9 ай бұрын

Progression of technology as now currently 2023 it is common to have an optical display (replacing the LED HUD) with even more defined details directly in the eyeball of the diverse mask. Also vibrational alerts for critical situations is now common place. At 50 years of age, I grew up with cars that did not even know of the existence of a rear back up monitor now it is standard equipment.

@carlbroker

6 ай бұрын

is vibration and audio cue standard for Megs now?@@SeattleRingHunter

You know you're in trouble when you calmy study the fishes underwater and all of a sudden heavy metall music starts playing.

The diver handled a very scary situation well and has excellent buddies who helped him in this situation. Learning rebreather myself I can say this is not a good situation to be in (can be life threatening) and his level of calm while troubleshooting is commendable. It is never the wrong decision to bailout.

I guess I'll stay with air. Less bottom time but I know what I'm breathing, and I'm one of the few that doesn't mind doing 20 minutes of decompression.

Was going to say the same thing, he should of seen this 1st on the HUD... Nobody is perfect we learn from our MISTAKES. Thanks for sharing.

@nathe1005

5 жыл бұрын

The litgh of video distracted me. I took about 40 seconds

@davidbennett8825

4 жыл бұрын

Hopefully we learn from others mistakes too.

@stevebofearth2692

4 жыл бұрын

Unfortunately rebreathers have a very low tolerance for mistakes. Too often it's one and done.

Thanks for sharing. And well done on keeping it cool and getting back

And this is why I dive a Kiss CCR with an orifice instead of a computer controlled solenoid. The more I dive this thing and look at eCCR failures, the more I don't understand why Kiss rebreathers arnt much more common. The list of things to go wrong is almost halved, and I'm in control....not a computer. Nice work identifying the problem and working around it though.

We have a good practice, that when we have a photographer (the one, that knows what he is doing with the DSLR - not everybody with some gopro...) underwater, there is always someone to watch him. The photographers are so immersed into the composition, that they are sometimes forgetting, that they are also immersed in the water... And this does not matter if OC/CC... (I'm on CC, photo. on D12 OC and i'm still the one, who is looking on his gauges, even when i know, that he is looking too.) I'm also photographer (but only landscape, thus out of water) so i know, that when one is really concentrating on the objects in front of camera, the rest of universe is somehow suppressed. I'm often enjoying the dive as a "security diver", but i'm happy with that.

@OnlyKaerius

Жыл бұрын

I bring my camera on both OC and CCR dives. Just need to also monitor instruments on CCR dives, especially the rebreather computer, I was taught to check it every 30 seconds.

Thx for sharing!

Good problem solving and situation control. Thanks for sharing.

I'm glad there are so many people willing to beta test these things so they get better, more reliable, and more accessible to us average divers. Blowing loud bubbles and scaring away the fishes sucks :(

@JoeKyser

2 жыл бұрын

its not a beta test.

@FloridaMadeMike

2 жыл бұрын

Dont take such big breaths and release slowly

@harrodharrod5239

2 ай бұрын

@@JoeKyser Honestly? Back then, for solenoid controlled RBs, it kinda was. Especially if it's unit from 2007 as the right hand computer suggests.

rebreather are awesome and also scary at the seem time lol

@rik16256

5 жыл бұрын

It's like a woman

@magiclarry7688

3 жыл бұрын

@@rik16256 😂😂😂😂😂

@SeattleRingHunter

9 ай бұрын

So are airplanes and cars so what!

Thx for sharing.

Thanks for sharing. I'm just about to get into a Breather so found this really informative, glad it was all ok! Cheers!

Still can’t get over the eyes when the frame freeezes 😂…so happy it worked out well …love and regards from india🙌🙌

Great recovery.

Great video on why its important to stay calm and swim in a team/group. Its gonna be ok, you have a bailout and that's why you have a bailout.

that way they say look at the ccr computer 3-4 times a min.

Cool dive computer where Dani het that one?

The less complicated, the better for me. To each his own. It all depends on your purpose for diving.

Not an experts here, but the sensor with the center display seems quite off from the average in all frames...

That could have been really bad had the buddy or himself not noticed

Stuff like this is why I'd be scared to dive on a rebreather. Yeah, I know there are many advantages. But the more complex the equipment, the more failure points there are. Glad everyone was okay. Dive safe.

I'm not a rebreather diver, but I read some of their manuals. I know the ADV on some models like the JJ will free-flow when you are vertical and head down. This wouldn't cause a high PPO since it's just injecting diluent. I wonder if the oxygen addition valve can free-flow when you are in a head-down vertical position like when this diver entered the shipwreck? What rebreather is he using?

@anthonywong614

4 жыл бұрын

No. your orientation wouldn't cause a free flow of O2. his solenoid, which is responsible for O2 injection, was stuck in an open position due to dirt in the system.

Amazing how the solenoid got dirt particles in the area described Id like to know how? Isn’t this normally a sealed unit ?

@rik16256

2 жыл бұрын

It can come in from the oxygen connection from the outside

@SeattleRingHunter

9 ай бұрын

And then we have a discussion about O2 clean and flammability concerns 🙄

@SeattleRingHunter

9 ай бұрын

And then we have a discussion about O2 clean and flammability concerns 🙄

@SeattleRingHunter

9 ай бұрын

Then we have additional steps added to the check list to disassemble the solenoid for visual inspection and cleaning.

Well done 👍 great buddy and good drills. Was it a case of adding o2 yourself to remain within the safe range then until surface. Not a rebreather diver so sorry if it's a bone question.

@ianmackay999

5 жыл бұрын

Joe Spencer you can only add yourself if the O2 cylinder is reachable and you can control the valve yourself on and off No point using then manual button as the solenoid will be adding it whether you like it or not.

Great dive buddy! Good job

Any chance you could show Exactly how to service the solenoid? Please

@laszlomocsari2118

5 жыл бұрын

Sorry for late reply! This head was sent by Marcelo to the replace of Shearwater Predator and did a complete overhaul that was not done.

@JoeKyser

2 жыл бұрын

@@laszlomocsari2118 thats the best answer ever. I dont think its wise to just rebuild the selenoid. there should be more to it than that.

@laszlomocsari2118

2 жыл бұрын

When I opening the solenoid there were solid particles. I did just the cleaning, removing the particles with a dry cloth.

@SeattleRingHunter

9 ай бұрын

All metal components should be ultrasonically cleaned if free of plastic and o-rings.

the heavy metal song makes this video even more scary

Hello Laslo! Is the canister in this video standard Megalodon made from aluminum?

@laszlomocsari2118

4 жыл бұрын

Sergei Shaman Reznikov Hello! Yes. All ISC canisters are aluminum

😉 for sure, diluant flush....or bail out directly

Need a deep knowledge of emergency procedures.

Why did he not do a DIL flush?

@bevtecdiving6853

6 жыл бұрын

He did. He dil flushed while he left the wreck and then bailed until he could fix the problem. Then returned to the unit.

Why return to the circuit for deco if you know it's bad?

@bevtecdiving6853

6 жыл бұрын

He fixed it by feathering his O2 valve. Once the problem is identified he could go back on the loop. Its no problem.

@zsystemsnz

5 жыл бұрын

Plus in shallow water as the ambient pressure drops the ppo2 will drop too

the diver had a h.u.d display infront of him...how come he could not see this giving a warning...was the hud disconnected...glad he did not get a 02 hit...

@laszlomocsari2118

7 жыл бұрын

Thank you for commenting! The HUD was not disconnected, probably his vision was overshadowed by the light of the video because that is very strong (2 x 3700 lumens). The flow of the open stuked solenoid is very high, a few seconds of free flow are sufficient to raise PO2 greatly. Marcelo told me that when he realized the PO2 was in 2.0, that is, a few seconds after the end of the sena of the film of shows the computer blinking. I already went through similar situation and finished the dive doing manual flight in the same way.

@topdiveribiza1

7 жыл бұрын

László Mocsári ..hi my friend...it is a good lesson to see how all of a sudden a perfect dive could end in disaster..thanks for sharing video as its good for other or new ccr folks to see ...safe diving mate...

@HH-cu2mv

7 жыл бұрын

bob thomas it's been my experience that the biggest cause of issues on rebreather is complacency not saying the guy did not see it, just did not notice. I tell my students "if you walk by a broken window enough times, suddenly it's not broken anymore " like watching your gauges it's something you must notice not just see

@nathe1005

5 жыл бұрын

It took me 40 seconds to see It.

Why he moved out from CCR to the bailout ? Just because he passed by the 1.4 ? Why he couldn't just go up a little bit to stay under 1.4 Po2 ?

@laszlomocsari2118

2 жыл бұрын

Dear Rodolpho, thanks for watching and commenting! It seems to me that Marcelo's first reaction was to inject diluent, however the solenoid stucked open below 30 m is difficult to control the PO2 with this maneuver alone. That's because he went to bailout. We tried to diagnose the problem in the depth by disconnecting the manual oxygen addition hose which did not solve. There were buoyancy problems... Faced with the situation, I signaled for us to abort the dive. At the decompression stops (shallow depth), we were able to hear the free flow of O2 when the cylinder was opened. The Free flow through the open solenoid was intense, I'm not sure if an ascent within a safe speed would be enough to keep the PO2 at acceptable levels.

@rodolphosaraiva2720

2 жыл бұрын

@@laszlomocsari2118 Now everything make sense! You did the right turning off the O2 cylinder and disconnecting the hose, and he did right changing to the bailout. You guys did it great!

The computer does not vibrate?

@laszlomocsari2118

2 жыл бұрын

Unfortunately this computer does not vibrate

What is po2

@megman_ccr9642

7 жыл бұрын

it is the partial pressure of oxygen in the breathing loop. 1.1 to 1.3 is kinda a normal range to run in.

reason for stuck solenoid?

@destry5250

6 жыл бұрын

Split-Photography: Sea Spiders . . .

@Feintgames

4 жыл бұрын

Dirt. Watch until the end.

Any reason why solenoid stuck?

@laszlomocsari2118

6 жыл бұрын

LA5150 Thanks to watch and comments my video! Please watch the video until the end you will see the answer.

@ianmackay999

5 жыл бұрын

They will stick quite easily if you don’t get them serviced I’ve had the same thing. Bailing out on less than 2 is just not necessary. DiL flush and if you can’t reach your o2 bottle if you’re too fat like me, then a normal assent should sort anyway. Only trouble is the O2 bottle emptying if you’ve got deco at 6 m and less. high PPO2 no problem from 6 m anyway

Did the diver bailout and then leave the wreck? The way the video is edited it suggest events happened the other way around which does not seem sensible.

@laszlomocsari2118

7 жыл бұрын

It really does! When I edited I thought that Marcelo had gone first to bailout but in reality he made the flush of diluent.

@mikaelglasgow

7 жыл бұрын

Hopefully good lessons learnt. Safe diving

What does Po2 mean. Partial o2 pressure or something else?

@laszlomocsari2118

5 жыл бұрын

James Goddard, Thanks for watching and commenting on my video! By the question I see that you are not a diver. Yes it is the oxygen partial pressure. The measure used in this video is absolute atmosphere (ATA), that is, when the diver's computer shows 1.3, is equivalent, on the surface, to breathe 130% O2.

@jamesgoddard8375

5 жыл бұрын

@@laszlomocsari2118 no I am but new to the sport, logged 15 dives. I don't understand what the problem your friend had here . Can you explain what happened

@laszlomocsari2118

5 жыл бұрын

James Goddard, Welcome to the sport! To reduce the decompression time, PN2 should be reduced . (reduction of "inert" gas uptake into tissues). This is achieved by using shallow depths, by increasing PO2 or both. There are limits to breathing O2 (0.16 - 1.6 ATA). Below this we have hypoxia and above hyperoxia. Both can cause loss of consciousness and consequently death of the diver. With rebreathers the usual maximum limit is 1.3 ATA. In this video this limit has been exceeded enough.

Better do not do it at all, the rebreather dive. The electronics in it, salt water, batery, etc. Thank you for this moovie. Very dangerous!

What's the name of that quick tanks release?

@laszlomocsari2118

6 жыл бұрын

Enzo Lanz, Tiger Gear. The Megalodon has an other type: Shadow Mount.

@enzolanz84

6 жыл бұрын

Thank u very much!

@enzolanz84

6 жыл бұрын

unfortunately they are unavailable in italy :(

@laszlomocsari2118

6 жыл бұрын

Enzo Lanz. The Shadow Mount you cam buy in: www.divegearexpress.com/innerspace-shadow-mount-systems-and-parts

@enzolanz84

6 жыл бұрын

Yes, I know. But I prefer yours!

I dont understand any of this, but judging by the music is seemed critical. . what is PO2? Poisen Oxygen?

@snared_

Ай бұрын

partial pressure

What diving computer is that?

@laszlomocsari2118

2 жыл бұрын

Shearwater Predator

Shearwater Perdix, saved another life today!

@telmnstr

5 жыл бұрын

I would argue that the lack of a vibrator motor almost ended one?

@SeattleRingHunter

9 ай бұрын

The divers astute mind to bail out saved his life! Let’s be honest with our assessment all SCUBA equipment OC or CCR is subject to failure at any given time no different than aircraft or automobiles. it boils down to the ability of the operator being able to quickly identify a fault condition and being able to execute the appropriate response to mitigate a safety of life situation.

Marcelo is soo stronk - that he can not open even bailout valve ))

무슨상황인지 알려주실 한국분???

@user-ij7dw9wo9v

5 жыл бұрын

이태근 산소의 부분압수치가 1.4가 정상인데 2.0이상으로 상승하여 잘못하면 산소중독이 올수있습니다 그리하여 베일아웃(옆구리에 차고있는 실린더)기체로 바꿔물고 다시 재호흡기로 호흡하면서 산소실린더밸브 열고 닫고 하면서 상승하네요왜 열고 닫나면 산소실린더밸브를 열어두면 산소는 계속유입되니 산소부분압이 올라가고 계속 닫아두면 호흡기체중 산소농도가 낮아져서 저산소증이 오니 열어서 유입되면 닫고 산소농도가 낮아지면 열고 쉽게말해 수동으로 열고 닫고 하는겁니다 저상황에선 베일아웃 옆구리실린더 기체로 바꿔물고 상승하는게 최선이지만 영상은 교육중인것같고 또 저런상황에선 문제해결하는것도 중요하기에 그런것 같네요 결론은 산소의 유입차단을 해주는 솔레노이드라는것이 고착되어 망가진 상황이네요 자세한설명을 하자면 길어지니 대충 요약해서 알려드립니다

Now that's what I call manual addition :D

@youvebeenspooked

2 ай бұрын

XD XD

Music finished it for me

What is the PO2 supposed to be?

@carazo321

7 жыл бұрын

Wind waker Depends on the the setting for that particular dive. 1.3 is a good place to start.

@megman_ccr9642

7 жыл бұрын

1.1 to 1.3 is kinda a normal range to run in.

2.5 po2?? Isnt that lethal at once?

@laszlomocsari2118

4 жыл бұрын

Thanks for watching and commenting on my video! At this point (PO2 = 2.5) the diver was out of the loop. The video shows this. This PO2 is not immediately lethal. Just as a reminder, hyperbaric oxygen therapy that uses PO2 of 2.4 ATA 90 min with intervals of airbreaks and therapeutic recompression to treat DCI uses 2.8 ATA. It is true that underwater conditions are different and the threads are much less tolerated.

@OnlyKaerius

Жыл бұрын

It's not directly lethal, the issue is a high likelihood of convulsions, which can cause the diver to lose the mouthpiece and drown.

am scared of CCR .

Death in a box.....glad he is ok but FFS they are way to complicated.

@SeattleRingHunter

9 ай бұрын

Highway transportstion accidents are no different.

Sorry guys. I'm just OW guy. May I know what's going on?

@bigdestroyer5895

4 жыл бұрын

Uncontrollable oxygen addition to the breathing loop due to the stuck valve. The partial pressure of oxygen had risen to dangerous levels.

That's crazy! Isn't 1.4 supposed to be the max?

@OnlyKaerius

Жыл бұрын

1.4 is the "safe max"(though some navy divers have managed to have incidents at that, and they've gone to 1.3 max), 1.6 is considered the "emergency max"(it's the old safe max). Around 2.0 is where most people will eventually convulse. It's not an exact science. Sort of like narcosis it can vary from person to person and dive to dive how susceptible they are. Exposure time also matters.

mccr is a better solution for me !

The divers trim and need to hold onto things says something about him not being ready for the task load of a rebreather or penetration diving.

@laszlomocsari2118

6 жыл бұрын

Thanks for watching and commenting on my video! You apparently did not understand the video! The Marcelo had is similar to having the BC in which the power is in free flow, with regard to buoyancy. Would you find it easy to stay in the trim? The elevation of PO2 was only part of the problem. The continuous injection of oxygen into the circuit dramatically changes buoyancy.

@Agranell

2 жыл бұрын

@@laszlomocsari2118 maybe diving on a drysuit would have been the thing

😲😱

It's unbelievable the amount of expensive junk you divers carry now for a day out... ........... safe diving to all............

@AdrianoCROST

6 жыл бұрын

@bristol That's only for a really deep diving. For a normal dive one oxygen 8-12 L cylinder, dive computer and regulator is enough.

@kevinbutler717

2 жыл бұрын

@@AdrianoCROST I see you are not a diver.

Stick to open circuit........glad he is ok but ffs watch the gauges (display) he looked in a bit of a mess as one guy was holding on to him.

I prefer bubbels

i think its high PCo2 thats dangerous

@dlent1

5 жыл бұрын

High PPO cause cause oxygen toxicity, which can cause you to go into convulsions and spit out your regulator.

ccr to a 32 m dive? do you bring a nuclear bomb to a paintball fight?

@ceriops123

7 жыл бұрын

What a stupid comment this is... If you have a CCR then use it. You would get far more bottom time, and feel much better after a dive at 32 m on CCR compared to OC

@alipura146

7 жыл бұрын

32 m dive. bring double-15 litre tanks and a stage you will be set for hours. You wont feel much better unless the water is really cold.

@ceriops123

7 жыл бұрын

What is your level of certification? Because from your comments you hardly seem qualified to comment....

@alipura146

7 жыл бұрын

TDI Full Cave+Nitrox+Trimix+Advanced Trimix+Deco Procedures+Advanced Nitrox+PASCR Rebreather (satori), I have over 40 certificates, hard do list them all. Been diving for 23 years. Here are the pictures of some of my certificates. if you want specific ones let me know so I can share them as well. ibb.co/fxfmLa

@ceriops123

7 жыл бұрын

Ah, so really you should know better...

Hell, I could free dive this wreck and this guy has a rebreather! Just seems like a lot of tech for a relatively shallow dive.

@laszlomocsari2118

6 жыл бұрын

Thanks for watching and commenting on my video! When you want to dive for 4 hours (run time) it's not that simple!

@zsystemsnz

5 жыл бұрын

Not depth is the issue here but length of dive and the fact no bubbles I have done much shallower dives with my rebreathers

Need to be more careful. This guy is crazy.

Sorry but that’s bad diving practice. Once you’d seen high ppo2 you should have immediately done a diluent flush. There is no need to bail out.

@laszlomocsari2118

5 жыл бұрын

Jason Flather Thanks for watching and commenting on my video! Thank you also for alerting me to the bad practice! I thought there was more than one safe way on which the diver could choose and that getting out of the loop to BO was always the best option. If you watch the video closely in a second moment Marcelo tried to return to the loop but the diluent injection could not keep PO2 low.

Cool video but awful music choice

That trim. Dear god what a horrible mess. Sorry to say so. Next time invest in a course for trimming & buoyancy instead of a rebreather.

@laszlomocsari2118

6 жыл бұрын

Thanks for watching and commenting on my video! Apparently you did not understand the video and also rebreather! The Marcelo had is similar to having the BC in which the power is in freeflow with regard to buoyancy. Would you find it easy to stay in the trim? The elevation of PO2 was only part of the problem. The continuous injection of oxygen into the circuit dramatically changes buoyancy.

I have a feeling you tech divers all own a "Lifted truck". WHATS the point in this type of diving . I smell overcompensating for the lack of.

@divetalk

@divetalk