Gas switching procedure with 3 stages

The addtion to the interview with Achim, taken by Mike van Splunteren on how to handle 3 stages. Here´s the underwater part. The Gas switching procedure with 3 Stages.
For all the people commenting that this is only without gloves, etc...:
• 3 Stages with Drygloves
Please keep in mind that this is only for informative purpose and not a course! To do this typ of dives, proper training is essential.
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[@CoastalDevelopment]

for those comments regarding this procedure in drygloves: kzbin.info/www/bejne/q6O3ZYqqgLaUetk

[@carrollgauthier5750]

This diver is a Pro and knows his equipment and DECOM steps like the back of his hand

[@montypythonish]

I've been UK diving for about 15 years with BSAC. That was beautiful to watch. Way beyond my Nitrox twinset. Excellent trim, clear signals and at one with your kit.

[@BushCampingTools]

That was the key statement there: "at one with the kit" no way to do it smoothly unless.

[@felipmoll9371]

Clear signals, except this one: kzbin.info/www/bejne/d4XJnWClqpeSj8U

[@trollhunterhound1505]

Very well put..

[@PioneerPauly]

That was neat. So clearly and professionally explained. Well done!

[@davestadnik8739]

That was really impressive, mad respect 🙏🏻

[@frankdieber7090]

Every video I watch from ISE I learn something , I find my self watching the same video several times and each time I watch it I find something new or something better than how I do it.

[@hamzabakri9031]

Knows where every clip and lanyard is. Such a great control and execution. Very inspiring.

[@eftihismaraslis5192]

Thank you for the excellent demonstration .Very pro procedure.

[@wayneleinen7030]

Nothing short of mastery. Beautiful.

[@aurora1962]

Damn, this guy's good...

[@fffuuuu2]

That's a strong eye contact for someone switching mouthpieces so confidently!

[@TritonTv69420]

Nice video! Clear calm signals and no hesitation. This man is pro :)

[@superbholidays3520]

Beautiful to watch....I need to practice more 👌

[@kevinvandenborre56]

verry nice video ! watched it a few times already! amazing skills ! keep up the good work !

[@HealthSupercharger]

This is so interesting to see you have so many tanks. I thought going into doubles is such a bulky way of diving, but now I see that you have several which is interesting to say the least.

[@beaucointreau5665]

Fantastic. Thank you.

[@fabiobai1664]

Ein wirklich tolles Video. Zweifelsohne tauchtechnisch gesehen super, aber eben auch, weil es ansonsten kein Video gibt, welches dasselbe zeigt - ein mögliches Szenario mit 3 Stages. Ich sehe immer nur Videos zum Thema "Gaswechsel". Hier endlich mall einen "kompletten" Tauchgang, super!

[@nitijenberbudi4104]

smooth and clean good job

[@xlBLoodii]

Nice video. Very professional 👏

[@BushCampingTools]

Great video, yeah the feel from the finger tips, methodic and cool.

[@martindowndeep]

great video, nice skills. thanks.

[@nikitafedorenko9977]

WOW! Just perfect!!!

[@mustanggun]

Not a word, but lots of info. Thx much

[@simonthome5148]

Great video! I would really like to see an equivalent video for a CCR bailout using 3 stages please

[@bazoooooooooooooooka]

Eines der besten Videos dazu!

[@Rooster1.94]

Amazing - such ease. Love to reach this level.

[@numbnuts8437]

Very professional

[@arroyodflint7114]

very smooth .. awesome

[@amrudiving]

I watched this video more than 100 times to try to figure out how do you kick the leash to fall of in such a way ? Magnificent control 👏🏾👏🏾👏🏾

[@johndillon5767]

Majorly Awesome!!

[@RobertBodziockdivenow]

Superbe maîtrise des ''relais''...Bravo. Présentation superbe et belle sono.

[@trollhunterhound1505]

Nice style. Sharp signals. Learned from your dive. Cheers bud.!!

[@TheJoeyboots]

Great buoyancy control.

[@neilhay2155]

Great skill display. Very well done. First class diver.

[@kevinsoundmixer]

Excellent!

[@rjgiddings]

Watching this video...makes me realize I need some better dexterity dry gloves. Very nice job here ! Very clean.

[@brian6140]

RJ Giddings his gloves have no fingers

[@CoastalDevelopment]

kzbin.info/www/bejne/q6O3ZYqqgLaUetk

[@Simsaladoo]

Awesome stuff

[@malabou75]

Could you make a video on how to make the leash that you use to attach the third bottle that is behind your backmounted tanks?

[@conference-interpreter]

Amazing

[@johnb2271]

Cool! Thanks for sharing ;)

[@poppetrurazvan3900]

Wonderfull, perfect.

[@fredread9216]

Very well demo’ed. Thought about getting into tech diving but just didn’t want to get bogged down with all the tech. And certainly added risk. But do appreciate the skill. Thanks.

[@juannaval541]

Hi Fred, thanks for the complement. It's not necessarily for everyone, but there's a lot of ah ha moments even in a foundational level class. One of my current students came to me for a recreational clinic. When he took it, he always maintained he wouldn't progress to tech (too risky). Then every now and then he'd come back taking another class, then another in between experience dives. That was 7 years ago, he's now a Technical diver and is taking his Cave soon. Have you tried taking one similar? In ISE that would be a BoE.

[@solomanlonewolf]

And I'm struggling with just one deco tank. But he inspires me!

[@laurentdayan1045]

Toujours aussi pro à regarder

[@achimreschke2510]

Gold Job. Gold skills. Lets forgett about the Hand sign on 2.05 😉

[@coolzomp]

Hes going up to deco depth, and signaling that

[@andreselquevienecadames8681]

Dont gomero, KZbin i love your Chanel

[@MrTzompy]

Insane skills

[@patera984]

amazing

[@marconadali7896]

Perfect !

[@josc8950]

good stuff

[@RobertBodziockdivenow]

Super pédagogie. Again...

[@DrGlax]

@InnerSpaceExplorers solid video thanks for sharing. Do you know what mask the diver here is using?

[@pierredumand3348]

Hi Achim, Excellent video ! I can see some great mastered skills ! Just one question... Why isn't there specific nitrox regs on deco tanks ? And, I don't see any transmitter mounted either on your first stages for your computer. I believe there is a good reason for that... Is it not recommended as technical dives? Thanks.

[@edwardlyden7902]

Don’t use transmitters when tech diving they are a failure point. I am sure all his Regs are oxygen rated but are not marked like in recreational diving plus you won’t see nitrox stickers on his tanks but will be marked with specific gas being used his back gas,stage bottles can be used for different gas mixtures

[@razorr3751]

@@edwardlyden7902 there would be the possibility he treated his gear at a specialized scuba diving store maybe, which would then not be specially marked as usable with nitrox but still be fine

[@alerod21]

Hi! Which kind of compass you wearing? Looks like Suunto but it’s not I think

[@SH-ji2bu]

What kind of BCDS do you use in your Video with all the fin kicks??

[@superbholidays3520]

Awesome

[@dr.g6105]

Those are some crazy trim and buoyancy control skills. Multiple level stops with no reference point with perfect trim. I will never be that good.

[@husqvarnastyler]

Scott Gustafson Maybe you just have to Try try try try and try and finaly you will do it without Problems

[@GlamazonBarbie]

Holy Crap! You are a Tec God!!! I want to dive with you.

[@CoastalDevelopment]

Thanks - but no, I am not. But You can dive with me :-)

[@Ni2_Technical_Diving]

Very amazing trimm & high professional! It phenomenal! I would like to know how many dives you have! The most epic scene for mee: 4:20, when he does the kick! Und mir ist aufgefallen, dass du der deutschen Sprache mächtig bist! Finde deine Skills sehr beeindruckend!

[@DickyChap]

Amazing. One day I hope to be half as good as him. Respect.

[@arroyodflint7114]

we need to all keep getting wet and practice for ever

[@juannaval541]

@@arroyodflint7114 right you are! Time in the water. No substitute for it.

[@user-mb7lt4kt2v]

clear.. good..

[@blubundweg87]

Hi Achim tolles video aber warum riffst du die steages nicht sidemount? wäre das nicht stromlinenförmiget und bequemer als eine leash? grüße Christian

[@CoastalDevelopment]

hi Isaac, the light in the Video is from finsub.

[@iwipfler]

Thank you!

[@andredesmarais3119]

CoastalDevelopment - InnerSpace Explorers - ISE

[@hazmatops]

Finnsub about $400 USD

[@speedlime1515]

Must be GUE trained. Great Vid showing how it is done .

[@candyman3K]

Brilliant! Would be interested in seeing how you organise the clips on the left hip dring, ie. in what order and why. Maybe something for another video?

[@SplitPhotography]

mac_3k usually pressure guage on top, and leach on bottom. The other stages in common order in between.

[@arroyodflint7114]

pure poetry

[@aevans692]

hi , how much extra weight do you add to counteract the empty Alu' positive buoyancy ? Cheers ..

[@alancoghlan8863]

Hi just wached your utube about stage set up and helmet set up very good with the stage set up would the tag not get knock were you had it?? i like it hope to see more cheer alan

[@ivoryjohnson4662]

what equipment are you using drysuit regualators etc?

[@eightfifty2309]

Theres levels to scuba im sure but damn after seeing him demonstrating the gas switches, I had no idea that the levels in scuba is that high! 👍

[@billy2141]

It's just practice and can be achieved by anyone if you put the time in. Get your buoyancy and trim spot on first, practice at 6m, 3m and 1m until you don't even have to think about it. Then practice your skills hovering, in trim again and again until you can't get it wrong. Practice at the end of every dive on your 6m safety stop. Plan dives dedicated to skill practice. Practice clipping bolt snaps to your harness at home, build the muscle memory. That's all it takes.

[@fredrik.larsen]

Really nice. Such a pleasure to watch. I am curious though. How easy can you do this with dry gloves on?

[@CoastalDevelopment]

kzbin.info/www/bejne/q6O3ZYqqgLaUetk

[@fredrik.larsen]

@@CoastalDevelopment Thanks for sharing!

[@ivoryjohnson4662]

Nice video no crazy music clear information

[@ehardiyanto]

great effort under the water (y)

[@MAC_6.7]

Achim i notice you aren’t using a computer “I think” depth gauge only? What tables are in your wet notes? Just curious

[@GerritLeman]

Great ! Thank you for making the movie . One question: did you not say to store the primary light on the inside of the D ring ;-) ? I saw you store it on the right side of the D ring : twice. Just wondering? But great movie. Thank you. Your movies inspired me to do BOE+ training with Alain Dobbelaere. Will continue with ISE.

[@CoastalDevelopment]

HI Gerrit, thanks for your feedback. if there is no reg I can clip it from outside. if then the reg comes on top - it basically moves to the inside. (hope this makes sense)

[@iwipfler]

Who makes your dive light. Thank you

[@luigisarna5758]

Hi. I would like to ask about temperature of water. You used short gloves and You was able to do it. What when did you use all warm gloves?

[@CoastalDevelopment]

kzbin.info/www/bejne/q6O3ZYqqgLaUetk

[@AnneCampbell]

Do you use the crotch strap D ring to hang any tanks?

[@geoffwaterman6560]

Wow professional. how much extra weight do you need to carry it all those empty bottles towards the end of your dive ? you must weigh a ton before you even get down to start the dive ? and then how do you carry enough air at the start of the dive in your BCD or an extra pocket to counteract being too heavy?

[@alipura146]

Nice trim.

[@cbutube]

What make is the drysuit? I've been trying to find an orange one for ages!

[@Ublomor]

Elegant

[@user-le6pm1kv2c]

Good

[@Sethgolas]

Very impressive! How do you keep your trim with all your tanks on one side?

[@Blubpaule]

skill and they are alu tanks so almost neutrally buoyant.

[@rixogtr]

Hi, when you prepared for cleanup and oxygen stage, you stored 21metres stage and went for regulator on your neck (black hose) right before you started switching to oxygen cylinder, what did you breathe between 21st and oxy st ?

[@russell3038]

50% - MOD of 17 meters.

[@thomaschilcott]

Between the 50% (from the cylinder marked "21") and oxygen, he went onto back gas, through his primary regulator (ie gas from his twinset, probably trimix for a dive requiring 2 deco gases and a bottom stage). It's fairly standard practice to return to back gas when switching between decompression gases.

[@Litehamer]

Can only hope to achieve this skill level . New diver here and want to start out correctly .

[@nodidog]

You must be making good progress by now! Not so new anymore

[@vlademarcepeshmanovich8322]

Отличная работа! С уважением из России!

[@morillsaberiya6491]

Hi thank you for sharing. One question is how you keep balance when you connect three tanks in one side of your body? Why you dont flip?

[@LarsDennert]

Aluminum tanks are pretty neutral which is why they are used for stages. Steel would be a problem.

[@meridacavediver]

I’ve never seen a leash leg before, dumb question, what is it?

[@SH-ji2bu]

Hey what kind of BCD are you using??

[@HealthSupercharger]

Does the 1st stage reg not flood when you keep it off till you actually need to use the gas???? I noticed you do not keep it turned on.

[@peteralexsullivan8267]

breathe

[@SplitPhotography]

HealthSupercharger pressurised, then valve closed. Or pressurised and valve just slightly open. Good way to go about it.

[@BayronHD]

Subscribed, friend. It catches my attention with what camera you record and including accessories? It is for a maritime project, I would appreciate it from the heart

[@CoastalDevelopment]

Hi. the filming was done with a Go-Pro if I remember correct. Some of the more scenic stuff like the egypt wrecks was done with a Panasconic HVX 200 in a Gates Housing

[@BayronHD]

thank you

[@klixtrio7760]

I noticed you clipped the gate facing out. Is that important or is it a personal preferenace?

[@waterworkers9631]

That's diving!

[@candyman3K]

Hi nice video. What pressure did you fill the 100% bottle up to in this clip?

[@CoastalDevelopment]

mac_3k Thanks. probably around 120 bar

[@africantwin173]

CoastalDevelopment - InnerSpace Explorers - ISE I remember that in Thailand many years ago we had a Maximum pressure for 100% Oxygen fills up to 100 Bar. Reason was that without any medical papers u couldnt get those bottles filled up to a maximum 200 Bar. There fore we had to bring 2 half filled 100 % o2 cylinders on board to the deck for emergeny situations. I know that many tech divers used boosters to top off there cylinders for max pressure. It:must've been a federal law insurance thing i quess. .

[@johndaltrocanto]

What brand is that drysuit?

[@markwalter330]

I have a very fundamental question about the overall procedure you use. Why do you nose clip the bottom stage directly to your hip, rather than either clipping it to the leash or swapping it for the O2 bottle on the leash? In your procedure, it looks like you have to work around that nose clipped stage several times. It seems if you did the swap it would be a one-time procedure and then you would have both deco gasses up front and ready to go for the rest of the dive (no additional bottle moves).

[@CoastalDevelopment]

HI Mark. The empty BT STage on the leash is too bouyant and behaves like a dogtail. on the hip it is very stable. The whole procedure is based on the idea of not handling full stages to minimize the risk of droping them. the only full stage I move is the O2, which is the leas critical gas. haveing only one stage in the front also minimizes the risk of switich to the wrong gas as there is simply only one :)

[@jjohn8989]

How much extra lead do you carry to compensate for empty al tanks? Another great vid! Thanks for sharing

[@rob0600]

You can calculate it, depends on the bottlematerial...he uses Aluminium so when its empty is will tow you up with bout 1-3kg per bottle...dont have the exact numbers in my head just google it🤷‍♂️🙈

[@jjohn8989]

@@rob0600 that's what I figured, an al80 is positive ~3 lbs when empty. But I've never empty a stage,only a few hundred psi (depending on depth of course)

[@juzdeed]

how much extra weight do you need to compensate for the positive buoyancy of an empty stage?

[@pinnacledivingco]

I realize this was a video from years ago, but may I ask, why not simply stay on the 50% till you reached 6m and switch directly to 100% from there? That’s what we train to do as staying on the 50% speeds up deco. Do you have a reason for switching back to air at 9m and spending time off deco gas in between stops until you get to 6m to get onto 100%? Thanks in advance.

[@harrodharrod5239]

My guess is, that it's a safety precaution to avoid the possibility of ascending above 6 meters during all the tank and hose management. I realize something like that should not happen to divers of this caliber, but you can never be too safe.

[@pinnacledivingco]

@@harrodharrod5239 Wait, that still doesn’t make sense. Even if you ascend to the surface while breathing on the 50%, it is still far better than being on air. Additionally, it is a much simpler process (and safer too, as far as deco is concerned) to simply remain on the 50%, and switch directly to O2 at 6m, without messing with tanks. It just seems to me that this video is showing a needlessly over-complication of what should be a simpler process, simply for the sake of “looks” in “demonstration” of a “technical process”. It’s like the idea of coming up with extra steps to accomplish the same thing when you show it off to others just to give it the appearance of being more complicated than it actually is for impressions sake.

[@harrodharrod5239]

If you are at the level of using pure oxygen for your decompression, uncontrolled ascent to the surface at the beginning of your 6m stop means you probably are getting bent regardless of what you are breathing at that moment. My idea is, that if you do the preparation/switch to air at 9m, you have more time to catch up to the possible ascent and never actually break your deco profile. Having watched it again, I'm not even sure, how you'd switch directly from 50% to O2 anyway. I've only had my first dive with using stage yesterday, so even a simple swap to 50% was difficult enough for me. Deploying the O2 while breathing 50% seems like it would be very bothersome though. You'd have to somehow navigate 2 cylinders in the "prepared" position at the same time, which seems too much to handle for me at this point of my diving career. By switching to air while you shuffle the stages around, the whole procedure becomes much more manageable in my opinion. Doing it like that at the end of your 9m stop instead of the beginning of your 6m stop would only add the time it takes to get from 9 to 6m (so 1 minute?) on air while providing 3 meter cushion in the up direction in case you mess up your buoyancy.

[@pinnacledivingco]

@@harrodharrod5239 Simple solution to your conundrum. A: screw backmounted doubles for any form of tec and transition straight to sidemount from here on. Instantly solves your issue of “too many cylinders on one side”. Or B: “right rich/left lean”. Place the 50% on the left and the 100% on the right. Again, done. Once you switch from air to 50%, you stay on it until you get to 6m, then switch directly to 100%. Switching back to air ruins the whole point of accelerated decompression.

[@harrodharrod5239]

@@pinnacledivingco That is not simple solution. That is either getting an entirely new card, getting a new bit of kit and learning how to dive again (in case of sidemount - I know I'm exaggerating with the learning to dive again, but I hope you get my point) or changing your setup from what you might have been trained for (depending on your agency) and learning new drills in case of the option B. Do you have any basis for the claim that "switching back to air ruins the point of accelerated deco"? My understanding of how deco works is, that you need to get rid of the extra gasses dissolved in your tissues. Breathing oxygen rich mixtures accelerates that, as more gasses can escape your tissues thanks to osmosis effect. I just don't see how switching back to air for a while ruins the fact, that during the previous x minutes you have been breathing oxygen rich mixture, which allowed more gasses dissolved in your tissues escape your body without doing any harm. If you swap your computer to the proper gas or account for the fact you are going to be breathing air during the ascent from 9 to 6m in your dive plan, I just don't see, how it "ruins your accelerated decompression". At most, it's going to add couple of minutes of deco time. It's not like you suddenly on-gas a whole bunch of nitrogen when you swap to air for a minute. In fact, when doing long deco on pure oxygen, you should be doing air breaks anyway.