TRIMIX Diving to 120 meters 400 feet // Does it make sense?

Рет қаралды 36,756

Жыл бұрын

Open circuit trimix diving to 400 feet (120 meters) is a logistically complex and costly endeavor. So does it make sense? In this video we're exploring some of the key concepts that are essential for understanding the complexity of these deep trimix dives.
*Offer with College of Diving is valid for new customers for a recreational course in 2023 only.
#scuba #diving #diver #trimix #tecdiving #technicaldiving #ocean #underwater
⚡ SUBSCRIBE to the channel
🌏 TRAVEL with us to MEXICO
www.divesaga.com/mexico2023
📸 Follow us on INSTAGRAM
/ divesaga
📖 Get the BOOK "Career in SCUBA"
amzn.to/32kpaja
📰 Read SAGA MAGAZINE
www.divesaga.com/magazine
📱 Follow us on FACEBOOK
/ divesaga
🎥 EQUIPMENT used to film this episode:
Camera: amzn.to/3jdxJ6h
Microphone: amzn.to/3jdxOH7
Lights: amzn.to/2Eom59n
Atlantis by Audionautix is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/...

Пікірлер: 103

@DiveSAGA 2 ай бұрын

📸 My GoPro underwater tips: kzfaq.info/get/bejne/idyoo8V1ppzFj5c.html ☠️ How we managed a cave diving accident: kzfaq.info/get/bejne/muBnetWCqZmypo0.html ❄️ Ice Diving in Lake superior: kzfaq.info/get/bejne/fpxxlLhlkt3be4E.html 🦈 Finding Snooty the Lemon Shark: kzfaq.info/get/bejne/o7Gnftxnx5-0ioE.html 🔱 Diving to a sunken ancient Roman City: kzfaq.info/get/bejne/aNRgiMdh1dzRaKM.html

@johnenlinda1 5 күн бұрын

Thanks i learn to dive 35 year’s ago it was CMAS 2 years of snorkeling 1 year of training and learning to dive to 12 meter ;-) i never understand the part of the trimix. but now i’m getting it. Thanks. no i’m going to view the rest of you’re chanel 🙏

@DiveSAGA 5 күн бұрын

Thank you! I'm happy you're enjoying the content!

@paulturton9265 17 күн бұрын

Excellent video that describes precisely why i swiched to a CCR after my first normoxy trimix OC course!

@DexterBelgium 10 ай бұрын

You got a sub from me. Purely rec diver here, but the combination of both high production value and deep technical knowledge is a rarity on scuba KZfaq! Thanks!

@DiveSAGA 10 ай бұрын

Thank you! I really appreciate that!! 👊

@rodolfoborrel1077 Жыл бұрын

Congratulations for this video. I'm a technical diver and I always love when I found excellent videos like this one about the basic concepts we need to know in our sport. Good information like these can bring more divers to Tech

@DiveSAGA Жыл бұрын

Wow! Thank you! It's not every day people take the time to leave positive comments like this! Very much appreciated! If you haven't already, consider subscribing to the channel because this Friday we have another Tech episode!

@rodolfoborrel1077 Жыл бұрын

Subscribed and waiting the next episode! Keep doing this kind of high level content !!!!

@TfD123 11 ай бұрын

Make so much sense to use a CCR for those kind of dives. To not suck your tanks in minutes and to not see your money transforming in bubbles haha. Would love to do it anyway, even in OC 😎 Great video!

@DiveSAGA 11 ай бұрын

Yeah absolutely! It's a bit my point at the end of the dive that it's futile 😄

@jorgelopezluna1230 Жыл бұрын

Amazing video! Thanks for sharing!

@DiveSAGA Жыл бұрын

Thank you! I really appreciate the positive feedback!

@PeterK-gx8qs 11 ай бұрын

Great Video! Well explained with a lot of information in a very concise way! 👏👌

@DiveSAGA 11 ай бұрын

Thank you Peter! That's much appreciated! 👊

@chewielxxii4316 Күн бұрын

Great and very informative vid !! Thanks for posting - the music starting at 2:25…… can anyone tell me what it is ??

@halilkacmaz6714 2 ай бұрын

Thank you so much for this video really appreciated

@DiveSAGA 2 ай бұрын

You are so welcome!

@minukxx_dive Жыл бұрын

What a fantastic and informative video! Thank you, Nick, for sharing your knowledge. Your channel is a gem, and I must say all the contents are top-notch. You deserve more recognition and reach. Keep up the great work! Sending love from Sri Lanka!!! 💌

@DiveSAGA Жыл бұрын

Woah thank you so much. I really appreciate it! Thank you for watching and for taking the time to encourage. That means a lot! 💙🇱🇰

@Chogogo717 9 ай бұрын

I’ve been considering Helitrox just for reducing the narcosis for OC cave diving. I wrapped up advanced nitrox and deco procedures in a rough environment recently with fairly cold water and bad visibility from 7’ on the bottom down to under a foot on our 30-10’ deco stops. Different environments and task loading. Definitely makes the Helitrox worth it for me, but even those prices I think at some point for cave and deep I’ll wind up on a sidewinder or choptima unit. great video.

@DiveSAGA 9 ай бұрын

I agree with every single one of your points there! 🙂👊

@karimgodoy Жыл бұрын

Nice! Keep it up!

@DiveSAGA Жыл бұрын

Thank you!

@SCUBASTEVE_12 Жыл бұрын

Really interesting video. I am recreational diver . Personally for me going too deep I won’t see the marine life but saying that going deeper you will find deeper wrecks to dive.where I am limited to 40m . Also it’s the cost of training need to buy new gear and the expense of the gases that puts me off .But that’s my opinion. Crazy amount of deco stops you had to make . Also very interesting why the use /depth when to change gases and why you had too . Thanks really appreciate that video 👍

@DiveSAGA Жыл бұрын

Thank you! I enjoy technical diving but you're right that recreational diving definitely has its merrits too!

@eric55406 3 ай бұрын

Very interesting video. Technical diving seems expensive in terms of gas and equipment, plus a high cost for any mistakes made. Looking forward to getting my recreational diving certification soon but probably not looking to do technical diving. Still interesting to see the challenges and level of planning you guys do.

@salprestige2577 16 күн бұрын

DIR forever!!

@kre8tiv23 Жыл бұрын

Very informative. I'm learning so much from your videos! Looking forward to more! Keep up the great work!!!

@Nebulas63 9 ай бұрын

Are you considering ICD on your ascent schedule? Huge gas swings on the first switch. Plus it's a long way from 120 M to that first gas switch. Would you consider 10/70 as your bottom gas? add then a 15/55 for travel then a 25/35 followed by 50/15 and O2. This increases the helium bill, but stills the ICD . This is why divers choose Rebreathers :)

@DiveSAGA 9 ай бұрын

Thanks for the practical information. That's always appreciated! I rarely put helium in the deco mixes because the benefit is mostly theoretical but the cost is very real. However, bringing a 15/55 or similar along the way is a good idea for sure!

@scubaclient355 7 ай бұрын

ICD isn't a problem since it's a bounce dive, and no helium in the suit. Your gas choice is overkill. Especially the O2. Did you run it through Multi Deco software?

@ljubomirgligorov765 6 ай бұрын

In the diving plan ascent from 54m to 21 m is triox 25/12.This is unacceptet becouse contex of N2 is much more then trimix11/60

@pucioy 5 ай бұрын

Awsome video. Nice, logical explanation why and why not :) Thank you. btw. nothing pointless in passing own limits.

@DiveSAGA 5 ай бұрын

Thank you! That's really encouraging and I appreciate that! 👊

@novoxcage Күн бұрын

That music is crazy loud vs dialogue on phones syk

@Boopadoop 8 ай бұрын

The vis is amazing down there

@DiveSAGA 8 ай бұрын

It is!

@krishnakeshariduwal657 Жыл бұрын

😊

@nitrovaari 7 ай бұрын

END of 42m in the bottom phase is quite a bit worse than what most technical diving organisations recommend (30m). It's a real risk to be narked when diving deep.

@scubaclient355 7 ай бұрын

Have your lungs tested for burst pressure.

@Mirwits82 Ай бұрын

As an CCR diver looking at this I am so happy I don't do OC deep dives anymore. Logistics, material, switches, costs and bottomtime, it is simple not worth it on OC anymore...

@MorganBrown 6 ай бұрын

I’ve been thinking about Utila for an exotic trip. Is it worth the trouble of getting there?

@CritterHunter 5 ай бұрын

Awesome series! I have a similar one coming, but I have a strict rule that we do not share our exact deco plan/schedule. Believe it or nit people will just copy yours, instead of planning their own with software ect

@DiveSAGA 5 ай бұрын

Thank you! I definitely see why you have that rule but unfortunately if people want to be stupid they can be stupid I'm afraid. With our without our help!

@CritterHunter 5 ай бұрын

@@DiveSAGA I wish the law and getting sued worked that way

@knotsack22 Жыл бұрын

Deep OC trimix is a dying art in my opinion. Why not reap the benefits of CCR for this type of dive?

@DiveSAGA Жыл бұрын

Yes that's kindof my opinion exactly!

@ybkseraph Жыл бұрын

Exactly

@addohm 6 ай бұрын

Because if you have to bail out, you need to know how to do it.

@knotsack22 6 ай бұрын

@addohm , completely agree with Bail out. However, a dive to 100m or more will always use OC or BO CCR for Bailout. I was referring to performing the entire dive on OC. Which is wasteful and less efficient than diving those depths on CCR.

@ericcartman9594 5 ай бұрын

@@addohm you can bail out with another rebreather

@pauld201 9 ай бұрын

This is my dilemma right now, Tec 50 qualified with 100 plus tec dives total. Need to decide if I go onto Tec 65 and beyond OC or switch to CCR and basically having to start over with training etc to get back to the deeper depths. 🤔

@DiveSAGA 9 ай бұрын

Yes I fully understand. OC Trimix diving is wildly interesting but beyond 70-80m / 230ft it really makes more sense to go CCR

@stevecrane1125 3 ай бұрын

IMHO it just depends on a few things. How young are you? I just turned 62 so I made the decision to stay OC. As you said, you have to start over. Do you have the time to put the hours on the CCR unit necessary to do the Trimix training. I am 2.5 hours away from my training quarry and when I ran the numbers I figured it would take at least one season of diving every week just to get the hours on the unit to start the deep training.If I was in my 30's-40's I would for sure go CCR.I did a 5 day charter in Lake Superior and I brought 2 sets of doubles, a T-Bottle of Helium and assorted bottles of deco gas. My buds who were CCR carried their gas on the boat in a small plastic milk crate. Something to think about.

@pauld201 3 ай бұрын

I’m early 40s so should have a few more years in me yet. 😂 I’m in the UK so sites are limited for 50m+ id mainly be traveling with it to get anything deep. Off to bikini later this year which will be OC but often in the Red Sea and thinking of doing truk in a couple of year.

@WeiseGuy91 Жыл бұрын

Doing my PADI Tech 40-50 this year in Bonaire. Curious your thoughts on doing it in sidemount vs doubles?

@DiveSAGA Жыл бұрын

I would do it in doubles and later cross over into sidemount. That way you eventually know both, and I find starting off in doubles slightly less taxing.

@DiverEgypt Жыл бұрын

Do it on doubles with TDI and not PADI

@babablaster_OG 9 ай бұрын

Do not use PADI for Tech. Use TDI or PSAI - unless you are already have 100 dives on sidemount then start on doubles

@siewa26 Жыл бұрын

Hello Nick - great movie, I see you used regular diving boat for this adventure, do you think with correct preparation it was possible to use regular yacht to attach explosives on Nord Stream pipeline in september 2022? cheers 👋

@DiveSAGA Жыл бұрын

I'm not a military expert but while the blown up section of the pipeline lies at depths that divers could reach, I think the preparation and precision required for such an operation, probably require a military platform with adequate surface support. Something that would be difficult to organize from a regular yacht. But who knows 🤷‍♂️

@Rasirzaquer 2 ай бұрын

Hello! Great video. I have a question about your G2Tek dive computer. At bottom depth it indicated “Switching to Gauge mode”, did you expect this? I am planning on renewing my dive computer and was thinking about this G2 or a Perdix. What is your opinion about these two options? Thanks!!!

@DiveSAGA 2 ай бұрын

Yes that's a warning. The G2 Tek has a maximum depth rating of 120m so beyond that they don't want to be responsible for supporting the dive. If you plan on diving deeper, you should look for a different computer indeed.I also have a G3, which has a max depth of 300m.

@Rasirzaquer 2 ай бұрын

@@DiveSAGA Thank you very much for the response!

@vladzibuls5198 9 ай бұрын

Gas management is ...... The 22 ltr twin set for the bottom and the distance from 120 meters to the first deep travel is 70 meters..... Does PADI consider it safe gas management?

@rappergrunzel9 Ай бұрын

Hi scuaba fanatics as I'm only ow certified can someone explain why they use Trimix 25/12 at 50m (10:23) this would be ppo2 of 6*0,25=1.5 bar which is far off the (conservative) limit of 1.4 that was taught in the ow-course. Are these divers trained to this ppo2 and "know" they wont get intoxicated or is it normal to go closer to the 1.6 mark when tech diving? Thanks in advance and very thrilling video!

@DiveSAGA Ай бұрын

It's common to use 1.6 as a decompression gas since you are much more still than during the working phase of the dive and gives you the highest possible (safe) oxygen dosage.

@rappergrunzel9 Ай бұрын

@@DiveSAGA Thanks alot!

@TJ-hp8sg 2 ай бұрын

Which gas did you use to get down to 120 meter? Thanks👍

@DiveSAGA 2 ай бұрын

I usually use my 50% as a travel gas (need to calculate a little extra volume) and then switch to the Trimix when it's no longer hypoxic.

@achilles6312 4 ай бұрын

Any reason to not do it on CCR? Other than not having a CCR?

@DiveSAGA 4 ай бұрын

@patrickshaw8037 9 ай бұрын

I wonder at the profile with something easy to mix like 10/50 and a ccr. I'll have look. It was 10min at 120m. And for others saying the same thing, for this, why dive OC?

@DiveSAGA 9 ай бұрын

Yes but the conclusion of the video is exactly that, that OC deep Trimix diving is indeed a bit of a pointless endeavor.

@ljubomirgligorov765 6 ай бұрын

OC for me is the best gear.

@mfgdprcs 3 ай бұрын

It was actually alittle over 3 minutes at 120m , the remaing 6minutes plus was the descent. So for this sort of dive you could get away with using 10/50 on ccr, but for anything longer say you are diving a wreck in cold darker waters for 25 minutes bottom time then you would want more Helium. You have to coinsider the equivalent air density of the bottom gas you are breathing, especially more so on rebreather with the risk of build up of CO2 , along with narcosis. You need your head feeling and functioning like it is when sat in your living room when diving a rebreather at these depths.Also the O2 is a little high at max depth if you need to dil flush.

@andreyns89 10 ай бұрын

Guys I don't get it. 4:58 - You just say it is really bad idea to breath that mix at the surface 11:09 - However, MultiDeco screenshot told us you are start using Trimix 11/60 from surface to all descent and ascent before first deco stop (57m)

@DiveSAGA 10 ай бұрын

On Multideco you'll see a red bar on the first line. That's to indicate that that gas is hypoxic at the start. It's then at your discretion to choose what alternative gas to use for the first few meters.

@dirty_productions 10 ай бұрын

@@DiveSAGA i Realy like your video! But i need to say that the collection of gases you used are not good for your health when you consider isobaric counter diffusion. The Increase of N2 is way to high... please consider to remove the gas specs out of your video. There are people who will likey follow that specs.

@DiveSAGA 10 ай бұрын

These gasses are super common across the industry. What gasses do you propose for this dive?

@scubaclient355 7 ай бұрын

10/60 bottom gas, 32% travel, deco/80% @@DiveSAGA

@codeloch Ай бұрын

who needs horror movies - wow!

@DiveSAGA Ай бұрын

We all need a hobby! 🤷‍♂️😅

@alexanderravik3998 3 ай бұрын

you breathe for 33 minutes, 100%. without stop? Saw you had no breaks on pure o2? on the dive planner.

@DiveSAGA 3 ай бұрын

Well observed. The plan as shown in the video doesn't show airbreaks but we did indeed insert an airbreak manually during the O2 session.

@CoreQ Жыл бұрын

They are point less. most of the cultural you can see or will see disappear at 60 meters. I understand the excitement of diving deeper . But personally, after couple try, I got tired of it, the risk is just too big for 10 mintues bottom time.

@DiveSAGA Жыл бұрын

Yes I mostly agree. Everyone's limits are different of course. For me it stops being worth it around 70-80m

@MrBear2002 7 ай бұрын

400 feet is the deepest part of our oceans? lmfao. Barely scratched the surface.

@DiveSAGA 7 ай бұрын

Hyperbole: /hʌɪˈpəːbəli/ noun exaggerated statements or claims not meant to be taken literally.

@martinjones8220 3 ай бұрын

Tatters on gas

@jonnieinbangkok Жыл бұрын

$500 a cylinder per dive...no thanks; and slinging all those tanks makes you look ridiculous 😂 😂 😂

@Chogogo717 9 ай бұрын

And how would you rig your cylinders to be a cute diver?

@scubaclient355 7 ай бұрын

You can do that depth slinging two tanks for deco.

@roadboat9216 26 күн бұрын

OMG. No thanks. I am a dive instructor with thousands of dives. Sorry, just no desire to do this. Takes the joy out of diving.

@commonsense-og1gz Ай бұрын

just replace helium with hydrogen, there is a far greater amount of this available on the planet.

@speeddemon4579 Күн бұрын

Not exactly a viable option. Hydrox and hydreliox are not easy gases to get and I still haven’t found anywhere to train with it

@commonsense-og1gz Күн бұрын

@@speeddemon4579 this is a people issue, not abundance. hydrogen can be had from electrolysis and chemical reactions. you can make this in your own home so to speak.

@speeddemon4579 Күн бұрын

@@commonsense-og1gz not saying they’re not easy to mix or get your hands on. The problem is you need special training for those gas mixes and I have been looking for right at 14 months and still haven’t been able to find someone to teach me how to dive with those gases. There just isn’t a lot of people who know how to train divers to use them

@stevecrane1125 3 ай бұрын

Great video. I am also certified as TDI Advanced Trimix. Never did any warm water deep dives. Looks like a blast. Last deep dive I did was at Isle Royale in Lake Superior. We dove the Kamloops which is at 270ft. Water temp in July was 36 degrees top to bottom. I did have a question. When you switch to 100% at 6 meters do you do the whole 33 minute stop there. My Shearwater goes kinda crazy if I stay on O2 that long at 20 ft. Usually I move up 10 ft for the last 18 minutes to keep my PPO below 1.6 Again great video. Might give this place a try this year.

@DiveSAGA 3 ай бұрын

Hi! Thank you! Yes the water temp here definitely helps 😁 We manually insert an airbreak on the 100%, I just didn't include it in the video to help simplify it a bit. I usually also set my computer with last stop at 3 and then we see if the conditions facilitate a shallower last stop (which they usually do).