CAVE DIVER REACTS TO SCUBA DIVING ACCIDENT INTERVENTION

hello everyone and welcome to yet another cave diver react or a dive instructor react video this one was sent to me by you know one of our listeners on the podcast on the dive talk podcast and they asked me to react to this video and kind of talk about what's happening um i think this video and i've actually seen this one before i try not to watch it before i react so you can get my honest reaction i've seen this video before it's been a while though i haven't seen it in a while so kind of being i'll be reacting kind of live even though i remember this video before and i think this video should be watched by every new diver honestly i think every dive instructor like myself should be showing this video because there's a lot of lessons to learn in you know essentially what happens in the video so let's get started it's not a long video but again i'll give you some pointers along the way okay so this video is essentially um describing a dive in in the bahamas back in 2008 this is why the quality is not great but still we get to see what's happening i really love the fact that the person you know recording this video is filming the computer showing us depth which is great so you can see um you know he's talking about the dive master is essentially setting up the limits every time you start a dive there's a briefing and obviously the dive master is essentially talking about what they're gonna die so i'm gonna pause right here for a second so if you notice he's talking about that there's a wall dive and this wall dive was very steep and buoyancy control is critical so here's what happens when you have new divers the best places to go diving are places that kind of bottom out a certain depth which means that divers cannot go deeper than that i personally like that when i'm instructing or when i'm being a dive guide or a dive master i personally like to take people to places where you know they're not gonna go beyond their limits and what i mean by that is wall dives like this one where you know essentially you go in a wall and the wall can drop to any death hundreds and hundreds of feet for example are dangerous for people that are not really paying attention to their instruments now obviously during the class you learn to pay attention to your instruments you you learn to you know keep an eye on it especially if you're going deep because you're going through air much faster air compresses at depth which means you're breathing your through your air way faster than normal right so that's why you're saying the buoyancy control is critical you need to keep your eye on how deep am i because there's no frame of reference you know when you have a the bottom of the ocean let's say it's a 60 feet or you know 30 meters or 20 meters whatever it is um you know you're going to go down and the furthest you can go the deepest you can go is 60 feet so the chances for you to you know go beyond your limits is limited by by the bottom um i always even today i find this a little bit complex especially when you're in very open water like sometimes we're doing dives you know we just came back from a whole week of diving and we were doing dive so we're transferring from one wall to another and between those two walls there's literally just thousands of feet below us so if we are at 100 feet of depth for example and we're transferring from one wall to another since there's nothing below you there's no frame of reference you don't see the bottom you don't see walls you don't see anything all i do is i rely on my instruments and that's one of the things that i think a lot of people don't understand about diving they they believe that the deeper you go the more pressure you feel or anything like that and that's actually not true you don't feel any different the deeper you go you know i've been i feel the same if i'm at 10 feet or 20 feet or if i'm at 200 it feels exactly the same and that's because most of your body is made of liquid and liquid doesn't compress so no matter how deep you go i mean i don't know if that's true if you're at 10 000 feet or something but obviously you're gonna be dead at that depth anyway um but i've been pretty deep and i don't feel the difference at all so when you're at 100 feet i could have been at 150 and not notice the difference at all if it's not because of my instrument so you have to keep an eye on that so beginner divers on a deep wall is a bad call but you know depending on the wall there are some beautiful walls out there especially when it comes to uh hunting and killing lionfish which is an invasive species for example they love to live in walls and i love to go out there and kill some so uh walls are pretty cool dives but you just have to stay in the game like you have to get your mind in the game and and keep an eye on it all right so there's a bunch of divers here i don't see the guide he's uh again he's had a hundred feet so they're already past their limit they agree to go to 70 feet but there are 100 and he's just in the wall the wall doesn't look amazing to be honest like i'm not really sure why they chose this wall um because i'm not seeing like oh my god like look at these amazing giant sponges or or something that is you know super interesting but whatever they're in this wall they're in the bahamas so he's at a hundred and he sees people that are way deeper right so they're supposed to be at seven he's not 111 as you can see right here and these two divers are super deep you can see they're like 30 feet below maybe like 10 meters below it just by looking at the camera that's what i'm thinking so it's 113 right now he's keeping an eye on it by the way this guy he's awesome he's he's um you know you'll see why but um he he did awesome divemaster went up and over the wall which means that you know they were swimming alongside the wall so imagine the wall is like a cliff like this they're swimming along the wall you can go as deep as you want so you have to keep your eye on it so at some point the dive master is like okay i've had enough maybe i'm running low on air he goes over the wall so if you go over the wall typically shallow uh obviously some of these walls start pretty deep anyway but in this case i think the wall was shallow probably at 70 feet or probably 50. so if they were like okay so 50 40 feet we're going to the wall around 70. no go don't go beyond that but he goes over the wall to shallow waters and kind of leaves everyone behind maybe he's thinking well they'll follow me if they're you know if we're diving all together follow the guide and that happens a lot obviously you want to try to keep everyone together and be like hey you know you guys okay follow me and you know make sure that everybody's following you that's part of being a good guide but in this case it looks like you know he thought maybe that people were following and he just went over it um hoping that everyone behind him follows but in this case obviously they didn't [Music] so he's at 114 feet which is about 30 something meters 129 so he's getting to at this point 129 130 is the lim the limit for deep diving for recreational divers so if you're a technical diver you can go beyond that obviously there's extra training and gear and just overall experience and skills to be honest to go beyond that but 130 is the recommended you know depth that a recreational diver goes to i've know people that go beyond that you know they go to 140 150 like there's no big deal i think that the maximum operating depth of air is 198 or something like that is about 200 feet but the problem is that we've we've talked about this in previous videos nitrogen will cause an effect on your body and which is called nitrogen narcosis so you'll feel like you're drunk and for most people this starts around 80 to 100 feet something like that as you start hitting triple digits 100 and plus for sure most people start feeling it and the deeper you go the stronger you feel it so imagine if you were drinking alcohol you know 100 is feeling like you're drinking some beers by the time you're getting to 130 140 150 now you're like at tequila level like right it gets stronger as you go and again we've talked about this in previous videos but just so you have an idea why there are limits it's not because the air is toxic or whatever is because you know at that point you need extra skills and extra training to know how to handle nitrogen narcosis to know perhaps that you should be taking a different gas gas named tri-mix which includes helium uh in your bottle because it will make it you know it will make it safer to breathe at deeper depth than 130. plus the biggest risk when you're deep is that because the air compresses the deeper you go you know you're going through your air much faster and if you're not keeping an eye on it you'll run out of air super fast so these guys are 131 right now the divers are still deeper than that so he pretty much is like okay if the guy's not going to do anything i got to do something so this guy if he's i assume he's a dive professional good job keeping an eye on on the people that are you know less focused uh and not really paying attention so he swims down to him he's like i gotta do something let me get their attention this knucklehead is here taking pictures like it's not a big deal uh looking at i don't know why because i don't see anything in this wall that you know requires me to risk my life for and he's already at 141 again passed by three or four meters past the limit that is recommended for someone who has deep diving training by the way this is not just every diver if you're a regular diver it's 60 feet that's a 130 recommended you have special training these guys are on a hundred and something and i don't know if you caught that 150 so or so feed i don't know if you caught that but one diver had 400 psi okay if you divide that by 15.7 i think you get bars if you're live in a country where um you're working with bars and the other diver had 700 psi just so you know we typically go into the water with 3000 psi all right so here in the states we measure in psi and you go into the water with 3000 psi most dive operators tells you to come on the boat with no less than 500 psi all right i personally don't like to come on the boat with less than 700. so 700 is about a third or so when i think about okay the first 1000 um you know getting to my spot i'm starting to dive then another 1000 i'm a 2000 if i split that into thirds i want to keep at least a third of you know by the time i get there in order to go in the boat it's just as an emergency right so i always start making my ascent around a thousand a little bit over a thousand to get to the boat around 700 you know up to 500 is fine this guy's at 150 feet with 400 psi now and you don't need to do all this math i was actually looking at some of my my previous dives in open circuit and for me who i don't have the absolute best surface air consumption um but i'm not too bad either i've been diving for a while i breathe on average about 19 to 20 psi per minute all right so if you think about the 3000 i'm about 20 psi per minute just to round it up okay which means 150 minutes at the surface so about three hours if i'm just at the surface breathing my tank as you go deeper obviously that time decreases so if you take the depth which is called atmospheres and you multiply it by the 20 psi i did a calculation on 150 uh feed you're about 5.54 atmospheres so you multiply that by the 20 at the surface and you're breathing about 110 or 120 psi per minute at that depth now remember that remember that because one guy have 400 and that is someone who is an instructor for me someone who is an instructor who is not panic who's just out there enjoying the dive just breathing slowly no problem i would be breathing at that depth around 120 psi per minute now imagine if i'm not experienced panicked because i just realized that i have 400 left and i'm i'm just losing it just to just to let's just let's just give him the benefit of the doubt that he's super calm and he's breathing somehow 200 psi per minute at that depth that's two minutes of air now on the video he calls it three minutes of air i think they had two at best all right two at best and if you're a diver you know that the ascend rate the recommended ascend rate should be about 30 feet per minute so if you do the math at 150 they have five minutes and that is without stopping for a say for a safety stub at 15 feet which you're always you know recommended to stop and do a safety stub at 150 feet if you go straight to the surface at the recommended rate you're looking at five minutes this guy has two so this guy's dead literally like i'm looking at it 400 psi at 150 feet you're dead and then if we want to make it more complicated i think that are 150 feet maybe you have three or four minutes of bottom time before you start going into deco deco or decompression means that you have required stops now you have there's no optional stops there's no optional safety stuff these are deco stops that you have to stop and i know this because i know that our 130 is five minutes so i can be at 130 feet for five minutes and then i have to go up if i don't want to go into deco these knuckleheads are 150 feet which means they have four or three minutes and they've been there taking pictures like no big deal and running out of air the guy with 700 again if it's breathing 200 which i i think they're going past that but let's say it's 200 this guy has three and a half minutes and it needs five to get to the surface now obviously you can bolt it and risk it you can start you can do instead of 30 you do i don't know 60 90 you can start going fast but then you risk getting the bends which means you will have bubbles in your blood and that can cause embolism can cause death so you can go super fast because you're running out of air because then you'll die anyway but you also can't go super slow because you don't have enough air and these guys were in really really bad shape so this guy took the camera away just give me that don't be an idiot just uh interlock hands deflate their bcd or else they're gonna skyrocket to the surface which i mean that is such a pro move by the way this guy he's awesome uh if you can get this guy as your instructor for sure do that um he did he did awesome so he deflated the bcd which is their buoyancy control device uh which if you don't do that you will you know it will fill with air as you as you ascend your air will expand it will fill with air and it will take you straight to the surface at hundreds of feet per minute or whatever like they'll be in the surface within like 30 seconds and they'll die for sure so he deflated them hang on i'll take you up these are all the skills by the way you learn as a rescue diver so at some point as you progress through your career as a diver and you learn new things and whatnot the rescue class to me is my favorite one to teach and my favorite one to take when i was a student because it teaches you all of these things so this guy was perfect by the book rescue diver so two and a half minutes later um what was that sorry i missed that let me go back i will make you all right so they went up here they are two and a half minutes later zero no air like i said they had two minutes obviously as they start going up the air expands a little bit and now you know you can breathe it for a little bit longer but two and a half minutes at 15 feet zero nowhere i'm surprised by the way the fact that they made it in two and a half minutes to 15 feet from 150 that means they went 135 feet in two minutes or in two and a half minutes that's twice so let's say about 60 feet per minute so they went twice as fast as we recommend the maximum to be the maximum speed so they went up 60 feet per minute but what are you gonna do i mean you can't just die so they went up you know uh quickly twice as fast as normal and made it to 15 feet with zero air all right so zero there he is looking like an idiot and this other guy is like huh what i'm 12 i don't know what i'm doing yeah this was this was really really really rough to watch again everything at zero this guy is awesome for saving these these two kids um you know and he finishes with please dive within your limits this is so true but if you're a diver especially if you're a new diver you have to keep your eye on your instruments now also get the right instruments you know these guys had spgs or submersible pressure gauges which means they keep track on on an spg which are fine they're they're reliable uh and there's no problem with spgs but you have to keep your eye on it if you're one of the people that are you know you know yourself better than anyone if you know that you're not going to keep your eye on it you're going to be with a camera and fiddling and not paying too much attention to it then get a computer right a dive computer that is going to help you and not all dive computers are the same not all dive computers are are helpful when it comes to you know keeping track of your of your depth and whatnot if you don't look at your computer it's not going to do anything however there's one computer that i really really like it's called the peregrine it's made by shear water if you're thinking about getting a computer or even if you already have a computer consider the the peregrine is is cheaper than all the other shear water computers i have four of them that i use for re-breather diving and cave diving and whatnot this i only use when i'm teaching open water divers or brand new divers and also the one i recommend and what i love about this computer is that you know number one is awesome is built like a tank but number two it vibrates it's the only computer i have that has a vibration and it's so strong like people 20 30 40 feet away can hear the vibration on it they look at me like my dive bodies look at me it's like what what was that my computer right it starts vibrating if you're going too deep if your air starts going low whatever it is instead of just showing you on the screen like the other computers do which just shows you like a warning or whatever this one starts vibrating and super hard you can tell even if you're wearing a thick suit or whatever doesn't matter you can feel it through it and that way you can look at it and be like oh i'm going too deep right i think it starts vibrating at 100 feet so at 100 feet and i've wore this again with students and whatnot if you hit a 100 it starts vibrating if you hit a thousand psi stars vibrating so really really awesome i don't work for shear water i don't i'm not endorsed by them or you know i wish they were sponsors of this channel they're not i just love their product and the peregrine is you know the one i recommend to my students because of the you know the advantages that it gives you by alerting you if you're going out of your limits right so as always i recommend training studying um obviously practicing as well and always diving within your limits you know this guy you know from the video shout out to him amazing rescue those two kids would have been dead no questions like if he waited one more minute they would have had one minute of air 30 seconds of air at 150 feet they would have drowned there's absolutely no chance they would have made it out of there if it wasn't because of you know those actions that day so awesome thank you so much uh to the person that recommended this video the listener who recommended this video if you have any requests if you found a video out there that is interesting and you want me to you know watch it and kind of react to it and give you my thoughts please go ahead and you know send us an email at info divetalkmedia.com uh the email i'm gonna put it below so you can see it info divetuckmedia.com and you know you know let us know what is it that you want me to cover or talk about and i'm happy to uh you know discover it with you here in the channel so thank you so much for tuning in don't forget to subscribe and hit the like button share with other people there's always comments in there about like oh i love your channel there's this great content please go ahead and share with others because it helps it helps us grow and you know kind of educate and share our tips and tricks with others that share the same passion that we have which is all about scuba diving so we'll see you in the next one

Channel: DIVE TALK

Views: 53,960

Rating: 4.946104 out of 5

Keywords: SCUBA, IANTD, TDI, NAUI, PADI, SSI, Tec Diving, Tec Diver, Tech Diving, Tech Diver, Cave Diver, Cave Diving, Open Water Diver, Scuba Diving, Scuba Instructor, Dive Instructor

Id: Zbkcv69hOYY

Length: 22min 13sec (1333 seconds)

Published: Thu Jan 14 2021