2L Mini Diving Tank, Is It Worth It?
Vložit
- čas přidán 17. 05. 2024
- I tested the SMACO 2 liter mini scuba diving tank.
How long does the mini diving tank last, how much does it cost, is it dangerous and much more info.
I have worked more than 7 years as a commercial diver and have one 1000 dives, so I know what I'm talking about and I do have fair amount of knowledge about diving.
I am not paid to say anything positive or negative about this tank, am I also not getting any commission from sales.
This is a honest review and I am not paid to say anything positive or negative about this tank.
Don't hold your breath video:
• How To Make Your Lungs...
0.7 Litre mini diving tank video:
• How Long Does The 0.7L...
The mini diving tank:
www.smacodive.com/product/sma...
0:00 intro
0:40 What's in the box
1:20 How to put it together
2:57 Hot to fill it with air
5:00 Pool test
5:45 How long do they say it lasts?
6:10 Is it dangerous to use?
6:54 Do you need a diving license?
7:22 Important safety info
7:51 Never empty the tank completely
8:36 Treasures hunting result
10:09 How deep can you go?
11:46 What does it cost?
12:54 How many years does it last?
13:18 Is it good for freedivers?
15:50 Is it any good?
My Vlog Channel:
/ @lordchristianwedoey
My Website:
www.christianwedoy.com - Zábava
Probably a good gear to do underwater repairs or inspections of your boat. In this use case, you stay close to the surface, are attached to the boat with a lifeline, but have your hands free to work, and the dive time is more than sufficient. I would consider one if going on a blue water cruise.
What about for lake diving? Maybe 10 feet tops. I really want to go out and pick up trash and other lost stuff in my local lake. I don’t live on the coast so there are no scuba classes near me.
Or maybe I could use a garden hoes and tie it to my boat and breath through that?
@@RazorRevengeI wouldn’t recommend it without any scuba training, I’m pretty sure you wouldn’t be able to breath through a hose at that depth, and even if you could it would probably get full of co2, similar to how snorkels can give you a “co2 hit” if used improperly
@@RazorRevenge you wouldnt be able to breath through a hose underwater more than just a few inches. There is a reason dive tanks are pressurized.
@@Warcraze13wel the main reason for pressure is to put 200times the air in.
@@TheAdatto The air has to be pressurized for you to be able to breath at depth. You cannot expand your lungs normally underwater, if you didn't have the pressure you wouldn't be able to draw any air in.
He now has a heck of a story to tell his kids, of how he survived the 2L mini diving tank
With french made military rebreathers (DC-55, FROG) you didn't have (well
..you don't have) a safety regulator. The only thing you could count on in emergency was a small 0,6 liter or 0,4 liter air bottle that was used for BCD inflation ...so you had to take off the hoses of the rebreather and breath from the BCD ...and ascent from up to 55 meters of depth (maximum depth for the DC-55)
I would use this as a self-contained emergency air system for my main system. Being a wreck diver you find yourself in situations without a direct ascent. I had an o-ring blowout on my main while deep in a wreck. But my dive buddy was right there, so after I grabbed his second/emergency regulator we attempted to diagnose the issue. Failing that we made our way out and a safe ascent. With this small bottle, it will give the diver an emergency air system in case their buddy was several meters/yards away. Overall it is for peace of mind.
No
, that will be very dangerous. U need to use trimax. The O² % is wrong. When doing technical wreck diving. U need to plan your % before driving. Emergency is not planned 😕.... Any use deeper then 10 meters could be dangerous!
Wreck diving and peace of mind in the same sentence... 🙂
@@Anonyma502 agree with everything except the planning your % part since you can plan as much as you want but it won’t help with an explosive failure, assuming it’s not from lack of maintenance
@@Anonyma502 well getting the bends is better than drowning
Un plongeur épave d'opérette qui ne double pas son matériel !
big thanks for the explaining. i bought it and i used it in my pool aswell! love your videos, keep the good work up.
A nice and concise (yet, detailed enough) review. Thank you!
I am impressed. I thought it would be less minutes. Thank you for posting your video. Now I am interested in purchasing one of these. Thanks again
Please wait 24 hours before flying after diving.. generally accepted rule
Thanks for the review! Which compressor are you using?
Nice. Saw these online and was curious about it. Thanks for info
Great information all around. Thanks!
But isn’t it dangerous to use your own compressor instead of a certified one? The smallest impurities can become toxic once you’re diving a bit deeper.
You can use your own compressor if it is made for scuba diving. And the one I use and the ones I mention in the video are made for breathing air.
@@Christian_Wedoy 🥰
@@Christian_Wedoy but does it have all the proper filters? Have you had air quality tested? What grade air is it? Its very concerning
@@GhostCaver yes is has all the propper filters.
@@Christian_Wedoy Which pump and compressor do you use?
Like he says in the video I would get training also since, not only do you learn a lot, you run through a multitude of emergency procedures and experience in a pool and open water. If you don't have it and something goes wrong you will most likely panic, or have to think what to do which wastes precious time. Furthermore, with training you are far less likely to end up in a situation anyway. It happened to me when I was in training, my mouthpiece detached from the regulator and I took a second to discover what was wrong, being new at the time, I naturally tried swimming quickly to the top but the weight belt made it slow since I was still learning to maintain buoyancy. Fortunately I quickly put in my seondary regulator and re-surfaced. Although I am not the sort of person to panic, it is still scary and being inexperienced and ill-educated makes your insticts take over, which for something like SCUBA diving, can be fatal.
Yes, take your time finding the right instructor, taking the time to learn your skills well, and you'll be very comfortable in the open water, because the skills will becomes 2nd nature with practice..
As a certified SCUBA diver, my main concern with these things is that they're being freely marketed to people who aren't. They suggest that customers seek proper training, but I doubt many people are going to bother with a full SCUBA course for something like this.
@@hedonismbot1508 whilst I agree, I am a strong believer in total freedom and free will and of someone wishes to take such a risk and it goes wrong, they must pay the consequences.
You guys are very safety. Safety. Safety. Im certified as well but to me this has a specific utilitarian use which is routine boat and anchor inspections. As sailors we have to frequently check props, inspect hulls, check anchors. This is routinely no more than 3m. Holding your breath in a sea state while trying to unwap a founled prop is a hassle, and coming up nearly out of breath you risk bumping your head etc. I would use this w a SOP onboard that states no more than 3m and 10 min. At that point the risks are less than using snorkel gear since depth and duration are not even factors.
You do realize that the air in your lungs expands when you come up, right? This means that if you don't keep your airway open that your lungs will be over-inflated upon surfacing if they were full at depth. This isn't an issue when you dive without a tank, because at depth your lungs are not fully inflated even if they were on the surface, because the air in your lungs becomes compressed as you go down.
Loved your video mate, good stuff. I'm amazed at people having a go at you for presenting some simple facts such as get scuba training before using such devices. And did you find any used plasters or condoms on the bottom of the pool?
Am glad to see you posting vids again, will be very interesting to see you compare tanks with people with no diving experience
Going to try to post more now that I'm back from the accident.
@@Christian_Wedoy Am glad you are feeling better and posting again, but don't rush yourself if you feel not up to it
@@Christian_Wedoy rotting for your full recovery. By the way, what did happen to you?
I broke my head in December.
Got a skull fracture, bleeding in the head and concussion.
I will make a video about it.
@@Christian_Wedoy God Bless because you're in a little bit near full recovery 😇 Stay Safe always
Really nice Video! I only have 1 Question left. What mini compressor do you used in the Video at 3:17 ?? Friendly greetings from Germany
can think off a few times this would have been handy, mainly clearing the boat prop when we got a big sheet off plastic wraped around it!!
I like the length of the video, as well as the review of this item. Cheers and subscribed!
Thanks 🙂
@@Christian_Wedoy hello I ask you is it scuba tank is safe?
@@saturn2705 it is safe for down to 10m if you know how to scuba dive.
You like ... the length of this clownish video? Maybe you should get certified to do real diving.
This is cool, is it very different from the 5L tanls we have in dive centers for kids? I don't see it dangerous, I'd just be concerned about the sealing of the bottle and then making 200 bar in it
Outstanding Video, I just ordered one!
This is really helpful video i was thinking to buy little scuba tank like this i don't think ill buy thank you for sharing this video
Nice I’m thinking about buying one
You should have the pony bottle visually inspected. Make sure you have the O-rings in place and fill the tank with a compressor that is suitable for breathing gases.
Thanks for the review man. I’ve heard people use toothpaste for keeping goggles from fogging up so that’s probably what that’s from.
Toothpaste, saliva or any grass is good to prevent fogging.
Toothpaste is to get the oils from the manufacturing process completely off before you start using the mask. After that you can use plain old dishwashing liquid but make sure to rinse off the soap before use! Or baby shampoo that doesn't sting the eyes.
@@zahimiibrahim3602 the best way to remove silicon on a new mask is heating the glass with a lighter. Dish washer, spit and grass work perfectly
@@odeltarkhan3033 No bloody way you could damage it, just use some toothpaste.
Toothpaste is used only to scrub the factory film off the inside of your mask BEFORE you use your mask, when it's brand new, and it should be repeated 2-3 times... Rinse and repeat...
I don't always have spit when needed, (who does), and I use the commercial anti-fog spray, found at most dive shops..
Most dive boats have a bucket of soapy water to dunk your mask in and that works not bad, if you can't find anything else..
Very nice video 👍🖖
Do you have a video to your air compressor, the small gray one you showed? 🤔 🤗
Clarity of that pool water is 👍 excellent.
Really enjoyed this video as I just got one myself
Very good video!!! Thank you for it! Now I want it
2 liters in a bottle at 200 bar pressure (2900 psi) is 400 liters of air Basically the human breathes on the surface between 12 to 20 times per minute for a capacity of 2.5 liters in calm weather and 5 liters in effort time. By spanking an average say 15 breaths per minute for 3 liters (15x 3= 45 liters per minute) and therefore 400 liters / 45 this gives 8.8 minutes of air on the surface At 10 meters divided by 2 or 4.4 minutes and at 20 meters by 3 or 2.9 minutes. Must not have tress otherwise more air. Even use as a backup for a stop of 3 minutes at 5 meters the bottle is not sufficient It will be empty well before because the breathing of the divers will be more important due to the stress of the end of the dive. This type of bottle is dangerous for divers It is fine for those who snorkel. Response from a scuba diving instructor
my pony tank is 3 litres ..then i went technical....so it became 7 litres.. 2 is pointles
what kind of diver are you if you breath 20times a min , i can easily breath 4 breaths a min
I think most resources use an estimate of 20 liters per minute. My SAC rate isn’t great and it’s 15 liters per minute… 45 liters per minute would be the consumption of a panicked diver
@@zman9811 Yes well I imagine that is usually the circumstance where you'd find yourself reaching for this little 2L
2.5 L??, the common volume of air in normal breathing is around 0,5L
Looks like the suit inflation bottles we used in the Navy - buoyancy in the drysuit! You couldn't breathe from it, though.
Anyone remember ABLJs? (Adjustable Buoyancy Life Jackets) - pre-cursers to the BCD. These had small inflation bottles like this and could be used in an emergency, by breathing through the ABLJ's mouthpiece. Actually, I think they were even smaller than this!
What kind of sea scooter are you using please? Thanks.
Great review. I have one question. In general, does wearing a scuba tank increase or decrease a diver's buoyancy, assuming no BCD? Or more to the point did this Smaco setup act like weights on your buoyancy?
Using the full-sized tank, I find they don't make me more buoyant. The air is so compressed in that tank that it increases the air density exponentially. Coupled with the metal material of the tank, I would think that they wouldn't make someone more buoyant.
When it's full with liquid gas it will be heavier than water so will decrease buoyancy but as you use the air the tank gets lighter so will become neutrally bouyant. When the tank is empty it will increase bouyancy.
@@peteskyrunner4845 The air inside a scuba tank is still a gas, just a gas under high pressure. Oxygen and Nitrogen don't become liquids at room temperature under any reasonable pressure (this differs from the likes of Propane and Butane and even CO2 which can be liquified at room temperature with feasible pressure).
Roughly speaking a litre of volume gives a kilogram of buoyancy.
This tank is adverstised as having a capacity of 2L and a weight of 6.5Kg. The external volume is probablly a little bit bigger than the capacity but I would think the tank overall would stil have negative boyancy.
@@petermichaelgreen also take into account the material of the cylinder.
Aluminum tanks are negatively buoyant when they are full, but become more positively buoyant as air is consumed. This means that by the time an aluminum tank is empty, it will float to the surface.
Steel tanks also start off negatively buoyant, but they typically remain so throughout most of the duration of the dive
So would this be safer to use for snorkel depths? I enjoy snorkeling but always hate not being able to stay under the water longer to soak up more of the beauty.
Just get SCUBA certified. They will teach you how to react to emergencies and explain how to stay alive in certain situations. This contraption IS a SCUBA device. You should be trained/certified to use it!
What compressor do you use? I’ve wanted to look into buying a compressor but I’m kinda hesitant.
Get a Bauer Junior.
Wow, there really is a lot to learn from something like this. I thought it was simple thanks I learned a lot from this video
Could I be ok to use this simply to dive under my boat to clean the prop of the regular fouling it gets?
This video was so awesome. All I did was click at the very end and found the answer. I didnt even have to watch!!! You are the best!!
@lordchristianwedoey what compressor is in the video?
Elsker alle videoene dine både korte og lange. Perfekte som stup instruktør å forklare barn og ungdom om fysiske lover innen svømming fri Dykking og flaskedykking 😄
Thank you for your video, as always they are informative, detailed and you do warn for the risks of using these bottles with no training, it is an interesting product, but... to expensive, so let's do some maths, this equipment as bail out system is capable, and I was looking for a pony tank and looked at the prices, this setup would cost me between 500 to 600 euros without a compressor.. I bought a 5 liter scuba tank for 150 euros, a metalsub regulator first stage for 55 euros, a metalsub second stage for 60 euros, regulator's hose of 25 cms for 15 euros and a mini preassure gage for 17 euros, also bought tank harness to connect to my bcd, all in all 340 euros, all new material, they ask 500 euros for a that? hmmm
15 minutes.
1/2 of the claimed dive time.
Make sure you have a filter on your compressor. Also make sure you're compressor is oil less .
I don't think it possible to get 2600 psi without a 3 stage compressor.
Awesome video thanks
Hay sagmal kann man die Flasche auch mit einer normalen Fahrrad fusspumpe auffüllen oder brauch mach die spizelle Pumpe?
I'm not sure a hand pump can make 2000 psi or more can it? Pumping up a bike tire can be taxing enough.
I like this video. I had an Uncle that was a diver. However I've never been scuba diving and I want to learn.
Take a class. Just ordering one of these tanks and trying it yourself without a license is extremely dangerous in a number of ways.
pls respond @Christian Wedoy i love watching ur videos and i want to know how to re surface when ur 5/10m from the top when your using the gear because you said dont hold ur breath so breath normally when rising? bc i dont want my lungs to explode Xd
video was good, thanks!
Thanks
Decompression sickness can also occur from fast ascent speeds, not just from exceeding the time limits. It's a way better review than the last time with all the safety advices.
Yes but nitrogen still needs to have time to build up in your bloodstream. You won't get decompression sickness at 10m in 12 min no matter how fast you go up.
@@Christian_Wedoy i wouldn't be so sure about that
@@LittleZakie i would be... im sure if it was possible to get deco sick from that, less than pressurised atmosphere, there would be a safety stop implemented for those stats... there isn't.. sooooo
@@DernRern safety stop has nothing to do here, as soon as you have some nitrogen inside your body you have a chance to suffer from decompression sickness after ascending too fast.
@@LittleZakie sorry man, you're wrong here.. the whole thing about decompression sickness is due to the volume of nitrogen in your blood... you dont "on gas" at any significant level at that depth, due to the lack pressure.. ascending fast from that depth may cause a lung injury in very rare circumstances.... but it still wouldn't be likely ... again becuase of the pressure ratio "edit" - and the time spent there being so minimal.. like less than 120 mins..
super cool nice job thanks
I know this video was posted a while ago but is it safe to use in a pool with out a license also my pool is only around 6.5 feet deep
Very good video
Thank's
Talking about decompression sickness using 2L tank is so much fun :D Having open water diver certificate, you would not have any sort of decompression training anyway. But, go and do the OWD training. There are another dangers awaiting in the water. And after training with propper gear you would not play with such toys anymore if you love your life.
I agree you should get a certificate. But I have been working as a commercial diver, and I use these all the time. So much easier to travel with.
@@Christian_Wedoy How in the world are you working as a commercial diver with no cert? Certification is not only about permission to dive, but almost entirely about your own safety. You should get one ASAP.
@@adragon Where did he say he wasn't certified?
or to save time bring both. refill small with large. while diving use compressor to top off large.
Doesn't filling your tank with a hand pump allow moist air into the tank leading to rust
Learned a lot
Glad to see you on youtube old friend.
*Your lungs may explode*
Okay I’m never scuba diving…
Max pressure 200 bars. Volume 2liters. Tidal volume is about 0.5 liter, breathing - about 15 times a minute. At a not deap diving, accordiingly - 2*200/(0.5*15)=53 minutes. Deeper dive will reduce the amount of possible breathings accordingly. 10 meters - 2 times, 20 meters - 3 times, and so on.
fast movements would lead to deeper and faster inhaling. Let say another factor 2.
So 2 L bottle should give you 10-20 minutes at 10 meters dive.
Been looking at getting one of these tanks to collet fishing lures at my peir witch from the top of water to ground i like 12 feet would i have to still take a class to safe
If you would like to use diving equipment you should definitely do an OpenWaterDiver certification.
You can get easy hurt or die if something goes wrong.
I'm certified. You really can't get into too much trouble with this tank at 12 ft because it won't let you stay down long enough. But it is easier to go deeper than you think, and then trouble, serious trouble, can be found very easily. If you refuse to get training, which by the way is a lot of fun and less than this tank costs, then get a SNUBA. Much safer. Also cheaper, as you don't have to buy a compressor. Nobody will fill this tank for you, and you can't use your garage compressor.
How did you stay underwater without weights and bcd?
7:16 there is a seal swimming in your pool
Okay so, im a really good diver, can go down quite deep wihout s tank and stuff. But i want to use this just to extend a little my snorkeling time and i would like to buy the 0.5l one, is that okay i mean just to extend like snorkeling time if i see something interesting?
But i never used a scuba tank before
Great vid
can you give us more
Details on the compresor ?
Not bad, but I think that for similar price you could get a stage cylinder with a regulator.
I already have that, and I rarely use it because it is to much hassle
I have a 6CH Spare Air. Which is Way Bigger than 2L. It's a bit Bulky. Like the idea of the Air Hose and Separate Reg. My Pool is Overcrowded. Never asked if I could Test it. I'm Not Scuba Certified. Can't afford the classes now. I could probably pass the Book Work without issue. Even I know about the Breathing on Ascent. Boyle's Law. Gas under Pressure. And the Risk of Popping a Lung. And DCS. I do a Modified Freedive. 90ft Breath Holds across the pool. Swimming along the floor. Then straight up the wall. I have to Watchout for CO2 Buildup mostly. I Wait about 1 1/2 Minutes between them. A few breaths to remove the excess CO2.
An enjoyable video. Beware there are some serious experts in the comment section.
The guy was in a swimming pool, not down next the the titanic.
This can be used down to 10m. I'm not going to Titanic with it anytime soon😂
This makes me really nervous when I think of people with no education using them. If you consider using a tank like this without training realise it could really KILL you if you use it incorrectly, by just some smaller mistakes. The largest one is that you forget and hold your breath as you go up which is extremely dangerous. Other risks include filling it with incorrect air or having a problem hapening deep down in the water such as just fainting. I understand it looks super fun, because it is, but it is a bit like driving a sports car without a licence. It is not that hard, but if you do a mistake on the freeway it will be the last thing you do. So I recommend going one or better several diving courses.
AT 4m00 mark. About filling the smaller tank with a big tank. Even the 1st time will never fill the small bottle to 100% because of the equilibirum. So full large bottle will 1st time fill small bottle to about 80-90% IMHO. And then of course as stated it gets worse starting with large bottle not from 100%.
Correct me if I am wrong but it's not decompression sickness thats the greatest threat here. It's a expansion injury? If you take a breath the bottom of pool this deep and swim to the surface you could explode your lungs etc. This has nothing to do with how long your down there. It can happen 5 seconds into your dive and the chance of it happening is nearly 100% if you don't do it properly.
What air compressor do you use
Hvilken pumpe er det du bruker for å fylle opp tanken med?
Hvis du mener håndpumpa, så er det en fra Amazon laget for å pumpe dykketank
How do you know you are not getting water in your tank or oil with that little compressor?
That trick fooled me sheeeet 😂
Just what I needed for my diving holiday to the Titanic! 🤣🤣
seen that nice for boat when you dive the houle for inspection or just for fun , i vafor 5l ,but i was often asbout to buy that tank that is shown here, just i dont need it but looks nice .
Hi. Just present this to Bahau people. I think it will be a great seller. Wonderfull kit. Thanks.
Nice Video! Im buy one and you really helping me too know what i must do when i buy it :)
Happy to hear I'm helping
7:17 grandpa crusin
I just wanma know is it safe to use this tank for about 8 feet deep i'm a beginner
How about the AirBuddy?
I suppose it's alright for shallow and brief excursions but personally I think I'd rather go bigger
I swa they sell a kit of 2L with own compressor this sould be awesome no?
What compressor is in the video?
Was that bottle some how sealed when removed from shipping? If not. It should have been. I don't like that at all.
Bravo.........I have hand pump 2200psi........the gauge on pump 4500psi......water cooled ......cheers
nothing beats correct training and these portray an easy and "harmless" way of diving and it is very dangerous to untrained people
Correct...
The dive training is not really to teach you how to dive, per se, but skills training exercises to learn what do to in emergencies.. These skills are really important to know and should become ingrained and second nature... Practice a lot in a pool, and you will be very prepared to enjoy open water dives..
Indeed
Very helpful / informative... thank you Christian.
I have been considering an air tank (of this nature) for a while, but have been put off by the price of them.
I have never scuba dived before; I would like to one day but probably wouldn't be able to, due to having had a cornea 👁️ transplant. (Unless anyone knows otherwise?)
I have no idea about corneal implants, but you can call DAN (the diver alert network) and talk/email them. They're doctors who answers questions about diving, offer diving insurance, and help in emergency.
If you shouldn't go scuba diving then you shouldn't get this and do it.
What puts me off is the price. Like 500 bucks? That's more (depending) than a full-size scuba tank. AND more for an adaptor and compressor? ehh. I might go for it if it was like 150 or something personally but this price ain't worth it for me. Hope you get a pass to go diving. I've only started training recently but it's really awesome.
@@blindey Many thanks for that! 😁😁 I'll look them up...
No one has said that I can't go diving, to be honest they haven't actually said either way. 🥴
A thought for you. Have you considered a SNUBA system? It’s basically a compressor on a float that (generally) uses batteries to power the compressor. I’m not sure of how long the hose is for feeding you air. It’s at least 30ft/10m or it could be a 300ft/100m.
Also I have had two lenses (eyes) replaced and both corneas sliced for fixing near-sightedness.
And I would be allowed to dive.
@@ph1gm3nt 👁️👁️ Well I'll be... perhaps there is hope yet!? Thanks for that. 😁
2 years life .... that's a no from me!
How long time for Max munite for 2l diving
Where i can get the regulator, i have already the tube ?
Cool 👍
I was peacfully watching the video Until u Said the price I had a hart attack💀but no hate thanks for the information! I expected it was gonne be like 30€☠️ love Your video’s🥰
Hi, Thank you. If we dive from 2m height, how much we enter to water(for example 1 m or 2 meter or how much)??? Thank you dear
What????
Any compressor will do? Or it’s specifically for that.
Must be a diving compressor
witch one did he buy A, B, C, OR D
One thing you haven't mentioned is buoyancy. It must be hard to maintain the right buoyancy without a proper BCD. And that will cause using a lot of energy and thus using a lot of air.
Might take some learning but when diving without neoprene this isn't really an issue.
Thanks!
Thank you 😀
Bravo.....dive class.....alwise exhaul when ascending....going up.......I see no Google's......did u get the high pressure hand pump.....2500psi....cheers
It would be good for emergencies on the sailboat. Instead of suffering a snorkel when trying to clear a prop or rudder.
Looks good!
1. basically keep breathing going up and down.
2. Don't go below 10 meters probably 8 for safety.
3. Throw away after used 🤷♂️.
I only want one to swim with turtle's at turtle point in Gili T 🐢
I'm certified. I see so many issues with this little tank. 5 meters seems safe enough, but it is pretty easy to dive to 20 meters without even realizing it. The guy using this is not going to have a depth gauge or a pressure meter and will not know how deep he is or how much air he has left. He won't have a BC. All of a sudden he is 20 meters down and run out of air. That is a time for panic. Hopefully he can make it to the surface.
Much better solution for shallow dives by amateurs would be a hose with a floating pump. The tether limits you to 10 meters and you cannot get yourself in as much trouble. And as an added bonus you also have a diving flag.
I think the bc west would not help you when deep dive😮