How to shoot a SMB - or why we shoot the SMB the way we do.
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- čas přidán 6. 05. 2017
- Lots of questions on why we shoot the SMB the way we do. Here´s the explanation - hope this helps and thanks for all the feedback.
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Probably the best step by step tutorial on how to launch a DSMB on CZcams. - Ditto to that!
Explaining the drill and then showing how it's done underwater, I think it's the best way to go! Great job
I would love to to take lessons from you to further my diving journey. You are exactly the kind of diver I aspire to be thank you for all the time you spend to educate us the knowledge is invaluable to me.
Much appreciated
This is great!! Thank you so much for this video!
The other ones were too complex and had a lot of mucking around, this one was simple and easy to follow!
Excellent video as a novice diver the really cleared up the most efficient way to launch a dsmb
I love all your videos!! thank you for making them, I have learned so much from you.
Used this set up today for the first time, suited me totally thanks. I was doing a cold quarry dive though and my Lips were cold so i couldn't make a good seal around the oral inflator at first though.
Hey Achim! I really enjoyed yor video "Why we shoot the SMB the way we do". Now I can see you obviously advise to preassemble the SMB with the spool. It would be really amazing if you could make a sequal "How and why we preassemble spool and SMB the way we do". I'm really interested in your opinions and techniques on this matter. Thanks so much!
Best training clip on CZcams about SMB use and deployment if you are ever heading to New Zealand let me know cheers Dave
Beautiful. Thanks for posting.
good to see that you are back, thanks for uploading
Thank You - great to see all the support and care.
simple and precise explanation!
Another great video. Thank you.
Super clear. Thanks for this.
Makes intuitive and complete sense …. Unlike he other videos I’ve seen from SSI or RAID…
Buoyancy spot on.
Regarding the checking for divers above, ISE is about team diving, the team should really pick up on having divers or boats above.
great stuff Achim
GREAT instruction videos!!!
Awesome video, helped a lot
Excellent video on deployment. Would you review how to rig the SMB & reel?
As ever...brilliant
Hi Archim could you let me know what size of the bolt snap you use on the end of SMB and also why you need a bolt snap ? Not only a double ender?
Nice instruction video, however a question. How do you do this in a fast current water “like we have here in Belgium Oosterschelde” and with poor visibility? I can agree with this if you are in still water. Please advice and if possible shoot also a video.
Hello Achim,
Thx for all your content.
Could you please show a demonstration of how to shoot/inflate the smb with the wing inflator ?
Question: I noticed with the oral inflation in very cold water, that it gets extremely difficult to wrap the lips around the inflator. You need to overcome a lot of resistence and exert extra force, which from what I heard, can result in microtraumatisations or worse(?) in the lungs. Any specific idea on how to handle this safely?
Good execution thx
Great video. What's the size of bolt snap?
Thx for the technique
Great video - very nicely done explanation of your technique. I do have one question and that is about the double ender.... does it just serve to keep the spool from unwinding? It does not appear to be holding any line but is just snapped through a hole in the reel. YES??
Thanks for the really great videos - I have been diving for 20 years but my girlfriend is a new diver. As she learns new things, so do I. I have always assembled the real and SMB when I needed to deploy we really don't the line for anything but use with the DSMB and this makes perfect sense, especially for her.
Thanks,
Larry
hi Achim. would you recommend oral inflation of large (180cm) dsmb or rather lp hose? thanks
Hello there, thanks for the video.
I did that once without experience nor instructions.
When I raised, my SMB was lying in the water and not SO VISIBLE. Is it the way it is supposed to be or I should have inflated more?
Thanks
I have a Hog dsmb it has a plastic clip to attach to I wanted to cut it off and use a metal clip but don’t have a way to attach the net metal loop to the dsmb should I tie the new clip via zip tie or tie line around a few times and make knot like tying a bolt snap to a reg hose?
Superb video
Nice, thanks
I really appreciate your logical approach to all diving aspects. I am wondering if you could do a video on deploying SMB while on rebreathers. Obviously things are quite different and I would love to hear your thoughts on it.
There is a video where I talk about it - czcams.com/video/aMENRTtyh24/video.html - but one with a demo has yet to be done. I put it on the list.
That bolt snap looks like it has an extra clip on the one end, I'm wondering what is it and why?
Hello I love your channel so much
I have one request for you
Can you make us a video talking about Kicking and finning techniques during diving specially frog kick during technical diving it cause some discomfort in the knees so how is the right way to do it.
Excellent ! First time i see i can inflate my SMB with mouth .. so simple - KISS should i say... Thanks
Dear Sir
in the video, SMD you use size? (how long)
Very cool . tx
At the end, you just clipped the bolt snap back to the reel and the line comming off it, right?
Thank you,Achim
I have been practicing this for a while and it works well during my guided tours.
One question:
In Aruba,3mm wetsuit no thighpockets,where do I clip the spool system off?
D-ring left,under SPG clip?
Normally on the back of the crotch strap
Nice tutorial
Thank you.
your videos are always helpful. How do you like your fins also (scubapro seawing nova?).
Hi, depending on what I do I like them a lot - look here: czcams.com/video/1YeSxN97uuo/video.html
bro, dich kenne ich doch aus dem Schwimmbad.
Direkt n Abo gegeben
Thank you for sharing the knowledge. I learn a lot from watching your videos! A question if I may: I see you're wearing an open cell neoprene wetsuit designed for spearfishing... how does that stand up to the rough and tumble of SCUBA diving? Very interested in getting something similar myself!
PS. Love that 'three-eyed tiger' T-shirt!
Hi and thanks, I appreciate it. The suit is a spearfishing suit, simply because you get much better Isolation then in a regular wetsuit with zippers . It is not open cell on the inside but has a kind of fleece . Unfortunately hard to find. Seac still makes them but only in black. So it holds up extremely well. This one has over 500 dives.
Interesting approach to the dsmb routine. Most of the methods I’ve seen recommend having the two components separated at the start, only to be assembled at the time of deployment. You opt for a pre-assembled setup (the spool is attached to the buoy at the outset) which makes sense to me: the vast majority of use-cases is specifically for dsmb deployment - why not have the setup as ready as possible for a swift action? Do you have an explanation for such a difference between the two approaches? I mean, is there a compelling reason why one would prefer having to assemble the two components underwater? Thanks. Kudos for your work.
Hello Pierre and thanks for your comment.
I see it like this: in a lot of cases you NEED to shoot the smsb - which means fast. So why would I want to fummble around, attaching the spool to it and risk dropping it when I can have it pre assembled in my pocket as a nice little package. IF I make a dive where i an emergency spool is required )for lost line or lost diver, etc, I carry an extra spool.
The other thing is that the SMB is introduced in ISEs training from the very beginning - so we want to keep the taskload low. From Leve1 onwards you usually shoot a real bag for deco (stored in the storage pack) That is shot with a reel and needs to be assambled in the team - but the the diver have a very expireinced level. Maybe we look for another video here :-)
What are your thoughts on putting a swivel at around 15’ Safety Stop length of line. I’ve heard some people suggest using a knot too.
You could do knots every 10' (3m) like cave divers do in cave line but 15' is a meaningless depth for technical divers.
Newbie here
I’ve watched maybe 15 videos about DSMB the past few days trying to get prepared for key west
Haven’t used one before
All videos thus far do not have the reel connected to DSMB
I prefer to have them attached to each other to eliminate an extra step and possibly dropping one or the other
Hello, any chance there’s a video on how you set up the smb to the bolt snap?
I dont think there is, but its actually very simple: get yourself the spool, a boltsnap of whatever size you want, i would use a medium sized one, a shackle, I use a quarter inch one (make sure its a stainless steel one), the double ender and, obviously, your dsmb. Then you connect your double ender to your spool the way you always do it, attach the end of the line to the eye of the boltsnap, and put the shackle in the eye of the dsmb and the eye of the boltsnap, and screw it tight, I used pliers for that. I do not know if you should glue the shackle shut in any way but I dont think so.
Hi Achim!
Can you show us how to set the smb, when diving with a rebreather?
Greetings
Andi
Hi Andreas, Excellent question . thanks, Will actually do this right tomorrow
Hi Achim, love your videos and have just bought a similar setup although am a little confused by the need for the boltsnap attaching the spool and SMB. Is there a reason why you would not simply connect the SMB directly to the shackle (or stainless ring in my case). Keeping everything else the same wouldn't this negate the need for the boltsnap and solve the issue of the double ended performing 2 roles? I actually connect the double ender through the shackle and the spool to secure it and can see no way that the spool would come loose. Is there some other purpose the boltsnap serves that I have missed? Have followed so many of your vids but this is the only one I can't quite get my head around. Thanks, Simon
Did you ever get an answer for this?
@@sinetwo Hi, not directly this time but he does say in the video to avoid stress on the double-ender. I get that if you dive with it clipped off to a DRing, but for pocket stowage (where you would clip it off to a pocket bungee) I'm not entirely convinced it completely solves the problem - just the friction of pulling the DSMB out of my pocket can lead to the double ender coming undone - albeit it's only happened once to me (and I had set up my DSMB like Achim does). Nothing is full proof but I now make sure to secure my double ender with an extra wind or 2 of line around and below the gate in addition to using the second boltsnap. Adds a few secs to unclipping it from the spool but gives me a lot more confidence the double ender will come out of my pocket still attached!
@@simonmirren1475 yeah I'd say the extra few loops definitely helps. You can also loop it underneath the thumb slider for a but of extra support
what if I use my second stage to inflate my smb? then I'm gonna need my right hand?
You should drop the second stage right on your chest so you could grab with either hand or have a neck ring that holds the second stage right under your chin. :)
Is the ISE U.W.E. Spool available for purchase in the US? Thanks!
Had asked myself too. On their website it states that there are 3 sized spools available but the online shop does not have the 80m spool anymore 😔
Achim i have a new video idea for you. Show us a 6-7m separation long house out of air deployment and use the camera as the out of air divers mouth. I want to see how this would work from 20ft separation and when you would actually do reg switch and donation. Lets assume that in real diving diver is separated by this much and you come all the way to the out of air diver. I want to see if modified frocg kick is bestband if you would deploy long hose at beggining or as u approach diver, and how would u break as u approach diver out of air.
I've tried it with aprox. 10m separation. In our case, the OOA diver swam without taking a breath to the donating diver. We thought that would be more realistic since a diver out of air will be the first to notice, will be more stressed and won't quietly wait. The diver used modified frog kick and flutter kick. The donating diver used these seconds to present the long hose. Braking was simply the OOA diver grabbing the arm or shoulder of the donating diver and wasn't a big deal.
Hi Achim why you have SMB attached by such big loop of rope? I don't see any reason for that, it just can be a source of issues as you demonstrate at 2:45. Why not attach rope to D-ring of SMB without any loop ? Thank you.
It's a pretty standard practise - You can take the spool off of the SMB very simply if needed.
The buoyancy changes in the moment when you have put your reg back in and start to inhale. While you're blowing in the dsmb (from your lungs) it stays the same as if you were holding your breath if with full lungs (what you shouldn't do, this is a theoretical thought). So theoretically if you let go of the dsmb before you inhale your buoyancy stays the same, in the same "one breath" range. But just in the case in which you fill it up using only one breath
Not quite right. You probably inhal a little more to fill the smb , so you are a little more positive since you start the process till you let go.
@zimt1 100% correct. Most youtube instructors don't even fully inhale.
Good explanation, but can someone help me on any tips using this method with drygloves in cold water.i have real trouble hanging on to the spool after inflation. Is it just a practice thing ?
Largely, yes.
I have big hands (XXL Dryglove) and found spools to be bloody fiddly things, time in the water and practising lining in and out and shooting DSMBs will get you over this.
@@sidemountsarge Thanks for the info,i was afraid someone might say so. Guess ill have to take you up on that practice.
Wow🎉
I do have smb with crack bottle, will be good to see them how you use
It seems my smb is harder to blow up then everyone else in these videos! Is it harder in colder water?!
Numb lips can make it more difficult to inflate. Is that what you meant?
1 hand makes sense keeps left hand free
Is that Aquaventure in Anilao where you are?
yes
Great laidback place and great people working there.
Great video but I always find it overstated the out of air donation readyness all the time, do tech divers really run out of air this much?
HI. no they dont :) this is the same like the OOG Sidemount diver - how the hell should that happen? BUT if I have a choice of how to do certain things - then I will of course choose the one that leaves me the best options.
What about the danger of barotrauma when inflating the smb by mouth as some instructor told me in my CMAS dive course, better to do with inflator hose or reg if possible...?
Dear Jean Pierre. In that case I would recommend to ask your money back because if that is the knowledge base that you where taught on you wasted time and money. If you want I can have this explained to you in details - by our diving physician - but it is simply nonsens.
Interresting....:-)
Of course I would like to know your explanation on this.... It make sense since I was thinking the same based on my training as rescue diver....
In my NELOS ( Flemisch Belgian) dive federation which belongs to the worldwide CMAS there are no course fees to pay... Just the yearly medical clearance and yearly subscription of 90€, all courses are principally free of charge besides the small costs of books or others similar, worldwide dive insurance is also included.... And I can really assure you that the quality of the training is up the level. Initially I had my first licence with PADI OW and the AOW, compared to this the CMAS 2 star training is on a higher level. We dive in the delta of the Oosterschelde in Zeeland, Netherlands with currents and sometimes zero visibility....
But ok I will discuss further the matter with my instructor and eventually put forward the question to the medical commission of NELOS.
Thanks for your point of view....
Jean-Pierre Verbeke I am curious about where this barotraumo should happen according to your teacher? In the mouth, ears???? I just cant see where the pressure increases by inflating by mouth as exhaling is exhaling regardless if you exhale into the regulator or into the smb. thx!
Well, the logic behind would be that by inflating the smb you put more pressure than normal exhaling through the regulator... And that short and accidentally too heavy exhales could push extra air pressure through the tube of Eustachius and by that suddenly increase the local pressure in the middle ear and potentially damaging the eardrum, possibility of nausea due to uneven pressure in both ears, damage to the hearing parts of the inner ear (deaf feeling). Also when in deco there is extra risk for decompression sickness symptoms... It's like clearing the ears while descending by pincing the nose and giving a small air push out of the lungs while closing the mouth , it also adds extra pressure in the middle ear to balance the eardrum.... only here you are inflating while staying level.... Just think for a while and it makes sense, doesn't it ? Besides one of my instructors had once one of those problems by inflating his smb....
thanks a lot for the indept answer. But no, it doesnt make sense after thinking about it for a while. It seems to me that the same danger exists when you inflate a ballon in your living room, doesn't it? I think the only "danger" existst when you push the air out so much that the pressure in the tube of Eustachius increases (which already is strange, I mean, come on, you should know how to blow air out of your mouth) and you ascend at the same time (which again is a lack of skill).
I'm having some trouble in getting the thing to actually inflate.. feel like blowing air in but is not actually going anyware and by the second/third attempt i'm only able to get the bag 1/4 full or less. Apart from a lot of practice which i'm already working on any word of advice? Someone suggested to me to use the BCD inflator to inflate the SMB but i feel like tat for a smaller bag like this the added complexity is not really worthig as it can be clearly inflated orally without too much effort. Thanks and keep up with the great videos!
Hi, really hard to say from the distance but I have seen lots of people having this issue in cold water wth cold lips. The second thing is that there are some cheap versions out there that also seem to work not so good as some others. There are some where you have to press the inflator in to be able to blow air inside.. So I would try a different model first to see if it works better then.
I like to use my regulator to inflate the SMB. Hold it in the opening and press the freeflow button. It definitely gets enough air in. Downside is that the SMB's buoyancy is higher than with the manual inflation. It will very quickly want to rise and if you get tangled up it can drag you along. So you should practice using the reel.
I know other agencies teach to make a visual check above you before you finally let the SMB go. Is that not something you teach, and if not, what is the reasoning? Regards, Jerry
Hi Jerry, thanks. good question. no we do not teach that. if I have to shoot an alert marker I have to - a diver above has the better vision on the scenario looking down then the diver below. So if in the absolute rare case that he would be affected by the rising smb it is one finkick to get out of the way. for the diver below it would be hard to "steer" the SMB anyway.
There is no reason to not look above you. SMB is an SMB (a marker), rarely shoot in an emergency. But just saying.
i was not talking emergency - but, for example, if I leave a wreck and start drifting into the current for my ascent I shoot it that moment to inform the boat I am going adrift now - so I need to shoot it that moment. A diver above is no concern for me and my small SMB coming up should be no concern for any diver. in all honesty I have never understood the divers, agencies, etc that see the problem there. (and that is the most funny thing - if you watch demos of the skill performed by those recommending to look up, you see them turn left and right trying to get a glimpse upwards - but do they manage to look "UP" I mean where the SMB will go? no, because they would have to turn on their back to get the angle. So the whole thing is kind of obsolete anyway - it is like teaching an emergency ascent throwing the belt - simply not realistic.)
I do understand your point. I see it as a marginal issue.
Where in the Phillippines you were at
Anilao
how many exhale inflation we need. 1?
i understand your argument for right hand use, but isnt an OoG situation far more critical to address instantly than then having to juggle the right hand free? Buoyancy fluctuations arent as critical in comparison.. and when released in time, should not happen. what do you think? I would still keep right hand free to donate at all times and inflate the SMB with left only.
You can also use your left hand to donate. Only when you have a lit torch on your left hand, you'd be shining it in the other diver's face, which is far from ideal.
You should write a book or have a class on how to deploy the smb and charge. TOO COMPLICATED!
I did, I do and yes, VERY complicated. 🤣🤣🤣
Beautifully executed. However, for either a larger SMB or shallower water (around 10m), you'll end up with a limp noodle floating on the surface if you deploy it in such manner =)
nope - but thanks anyway
@@CoastalDevelopment Ok...how deep was the diver?
I really appreciate this video, but you can do better, but i respect this style...
Gus sent me LMFAO
Once I start to inflate my smb, my buoyancy is affected and I start getting pulled up. If I partially inflate my smb to not get pulled up, then my smb is not inflated enough the top
Are you german? You´re englisch is very well. But your accent sounds german. :-D
Hi Lenny, damn - now everybody knows :-D
Thanks for the compliment - yes, german.
Nice video. but i think your bubble check is was not okay... looks Like your Wing is licking.
Well - the bubblecheck was ok. I detected that my spg is leaking slightly and made the desicion that it will not put me in danger if I go on 5 meters to show that skill :) but thanks for your concern.
Since this video was released, Apeks have demonstrated a better way of clipping off your spool to a bolt snap.
1. Feed the line/leader through a hole in the spool.
2. Clip the bolt snap onto the loop.
3. Loop the line around the bolt snap above the trigger.
4. Feed the line through the gate.
This will secure your bolt snap to your spool, without the risk of the gate opening when you don't want it, and losing the spool or having loose line as a result of it.
Of course, this way, you can't have the dSMB permanently attached to the spool.
I always carry two separate spools and dSMB's:
A 15m spool for deploying from a safety stop.
A 30m cold water spool for deploying from depth.
An orange dSMB as a location marker.
A yellow dSMB as an emergency buoy.
All spools and dSMB's are by Apeks, since they seem perfectly designed. The spools are very easy to use, not overspun, wide holes for threading the line through, and made of solid aluminium. The dSMB's are welded and stitched on all sides, have a soft silicone mouthpiece for oral inflation, SOLAS reflective tape, a tab on the bungee, and grommets at the top, and I have yet to see a faded dSMB from Apeks. The designs of both their spools and dSMB's are also geared for ease of use in cold water while wearing thick gloves.
U
Your buoyancy does NOT change when you inflate the DSMB, because the increase in the volume of the DSMB is compensated by a decrease in the volume of your lungs. Hence there is no need for that weirdness with the long hose in your left hand; just use your right hand as usual.
Your buoyancy DOES change once you inhale again, so make sure to let go of the bag first.
Nope - that is simply wrong - I would say you think that over once more and then get back to us :-D
Seriously man - no gas is added or leaves the system; there is no way your buoyancy can change. Same as with oral BC inflation, your buoyancy only changes once you take your next breath. But hey, maybe you can explain your understanding of the physics to me. I'm a curious guy.
One thing that does happen is people taking too big a breath before inflating the bag. The remedy for that problem however isn't the convoluted mess that you describe in your video… just take a smaller breath.
(Btw, I really like most of your other stuff. It's just that this one isn't your strongest work.)
that would mean that you exhale into the SMB and hold your breath after you exhaled - which nobody can or will do. You "place" your breathing volume in the SMB and inhale again - so until you release the SMB you have the added buoyancy. Of course this is not much and of course a very skilled diver will do it fast enough that the buoancy change does not really set in - but a novice will take some more time and therfore it is imprtant to point this out and offer a way to handle that.
Nobody can or will do it? I can only suggest you try. It's how GUE teaches the skill (check your SOP manual if you happen to have one kicking around), and their way is easy to pick up even for beginners.
Mind you, it's obviously not impossible to shoot an SMB the way you showed. The bag went up after all, and without incident. However, I think your method makes the task unnecessarily complex and is not very successful at achieving the design goal of being able to dump gas while deploying the SMB.
- It leaves you holding the primary reg in a rather awkward way, by the second stage instead of the hose and with the wrong hand for donating. You're severely limiting your ability to assist a teammate.
- What do you do if you actually need to to adjust your buoyancy with your left hand? Drop the primary 2nd stage and switch to backup after dumping? Or take out the SMB valve from your mouth, replace the primary 2nd stage with your left hand, and THEN reach back for the BC dump? The first leaves you without gas, while the second is kind of slow. Both ways leave you holding a half inflated SMB in your right hand - NOW you've got a buoyancy problem (in addition to still being unable to donate gas).
- You can't use the same method for inflating an open-end SMB from the second stage exhaust, as the SMB needs to be on the left side for that. Why not train that way from the start?
In summary, for the sake of having a half-assed solution for a problem that is easily avoided with very little training, you're creating several new ones. I think I'll pass on this one.
Ok I see where this is going. Thanks for your advise I will consult GUE for further assistance ;-)
Dude. Service your BCD once in a while. Soooo many leaks.
1sti am not your "dude", 2nd get some glasses, it's the SPG, 3rd "crazyguyblahblah" probably says it all 😁
Achim,
At no point should you take your reg out of your mouth to inflate a SMB. Why are you telling people to do this . You should use your octo to do this . Also why are you using a cave line as an SMB deployment reel. It should be a hand held reel with a thumb actuated lock.
I’m sure your a good diver but this video really bothers me about SMB deployment. I am a BSAC diver and this does not even come close to what we teach .
I know it's the internet, but please tell me you're taking the piss.