HOW TO Hack An Empty Aerosol Can To Make A Free DIY Refillable Compressed Air Duster

[@yazzercan4181]

You do know you can refill the can from its original nozzle just remove the spray head and use your compressor to fill it up with air

[@RanMinato]

🎉😂

[@upnorthofcali7399]

Make a video on how it's done please

[@KCartisant1]

How much PSI needs to refill with air ?

[@wonderwood1967]

Room air is not dry. The moist air is not a great idea for cleaning electronics, but for blowing general dust and debris, this definitely is a keeper

[@davidl5546]

Long, long ago I had thought of doing the exact same project, but I decided not to, when I considered the following: 1. The propellant in a normal spray can is NOT compressed air. Used to be cfc or some other gas which becomes liquid when compressed. During manufacture, the can is filled with the liquid propellant, the liquid to be sprayed, some air space, then the whole thing is sealed up. Some of the liquid propellant becomes gas and builds up pressure. Eventually enough pressure is reached to stop further evaporation. The problem is, what is that pressure, and what is the pressure the can will take before exploding? It may not be as high as you think. So I decided it was too risky to try making. 2. To pump air in to a safe pressure (how much is that?) is good advice. However, unlike the propellant which constantly evaporates to maintain the pressure in the can as you spray, in this diy can with pressurised air, you will very rapidly reach the point where the remaining pressure is not sufficient to be of much use. That is why I decided way back then that it was not advisable to try it. Probably safer to use a Tubed tyre, with a high pressure hose leading from the valve to an air spray gun.

[@johnsanchez8029]

Without some sort of activation energy in the presence of a combustible fuel, an explosion from atmospheric air is not possible. This project is missing 2 parts of the fire triangle. So fire is not a concern here. Even when he was soldering. Unless the can wasn’t rinsed. Even then, with that drilled hole, no way enough pressure could build up (during solder).

[@davidl5546]

@@johnsanchez8029 didn't mean explosion in the sense of the Fire Triangle. Was thinking of explosion due to too high pressure being pumped in. How high is too high? No one knows as commercial spray cans were never meant to be used for this purpose, so it is very unlikely that the manufacturer would specify what is the max pressure the can is able to withstand.

[@aaaarrrgggghh]

if you put it into a metal cabinet you can then pump it till it blows up then you'll know what that is, just an idea. But yeah you should not try any of it if you don't feel smart enough for compressed air, there have been indeed some deaths. Another thing is you will discover that it is your newly attached refill valve the first to go, way before the can explodes, and it might shoot into your face, so it is to be positioned in a safe place and not up there into your face.

[@alasdair4161]

Yep, pretty well covered BUT.. a note to: A' confirm the can is empty before drilling.. B. purge explosive gasses from can prior to soldering. C. fill cup around nozzle with water to avoid over heating the plastic valve during soldering. and all is good. PS, most spray cans have a design limit of 100psi, so use caution when filling, a rupture would make for a very bad day at ICU.

[@TheLabOtomy]

Good points, thanks for the complementary info

[@wangmauler]

@Scio qui sum -Je sais qui je suis I have a cheap Pneumatic air hand pump that goes up to 1,500 psi. Don't listen to scio's info. Anything dealing with compressed anything has a danger.

[@Nerino666]

especially when, for example: grinding open an old LPG-tank..., you'll be gled you filled it and rinced it with water, and with a real big tank: keep the walls humid, even steel is porous...

[@PoisonShot20]

Remember, looking time ago, I was 10, heard of a Mechanic/ Blacksmith got killed, and the whole building, about 12x12, was leveled. He try to weld a empty 50gl drum, that was used to store gasoline, even thought he filled with water, but not to the top. Sad tragedy!

[@mikaruonala2297]

We have been using empty cans prepared exactly like this in RC planes to operate the landing gear for decades. I fill mine usually up to 5-6 bar. Thus far I never heard of any exploding. On the other hand, RC modelers usually know what they are doing when it comes to soldering and other technical stuff.

[@TheLabOtomy]

Thanks Mika for the extra info, did not know of this usage in RC planes so am a little wiser now!

[@simonwhite699]

Yes until the 90's when Ii used mechanical servos on my ez suprastar, previously I used Rom Air retracts and never had any problems whatsoever!! :)

[@19dfr54]

Much easier to remover diffuser at the top. Place automotive valve stem over pin and add compressor air. Control pressure with line valve on compressor. Safety issue addressed.

[@cowdiologist2759]

I use my rubber tipped air nozzle and add 120 psi, been doing it for years

[@Bramble43]

How do you refill the liquid?

[@krzysztofczarnecki8238]

This really works and is practical, but don't expect it to last anywhere as long a new compressed "air" can on one inflation. The "air" in new cans is actually any cheap gas that can be compressed until it's liquid in room temperature (usually butane, propane, relatively non-toxic refrigerants are said to be used as well), and air unfortunately can't be, so there is much less of it than weight. If you can only find bike tubes with plastic valves that have metal thread, they can probably also be used, as they are actually brass inside, just scrape off the plastic. Solder holds better if the can and the outside of the valve are brushed with a metal brush. A can inflated to 6 bar is enough to dust a keyboard thoroughly once, and in some other video a guy (kzbin.info/www/bejne/qIOQhGpjm6aJisk) inflated a spray paint can to about 15 bars, and the top dome moved out a bit around the rim, but it remained intact until it was inflated to 25 bar, and the bottom lid came off, sending the rest of the can in opposite direction at high speed. But for this you need a good big shop compressor, not the cheapest car tire compressor that also happens to be ten years old.

[@grauwolf3977]

v roce 1966 , bylo mi 8 let, jsem si tímto způsobem nabarvil rám na kolo! Krásné vzpomínky na vesnici Mokropsy!

[@cirwo85]

Can you reply here with the amazon link to the metal filler and flux you are using . Thank you

[@LeviBulger]

It's just solder and solder flux. It honestly doesn't matter much. The only thing that matters is that you completely seal the hole with solder

[@cirwo85]

@@LeviBulger I see that now. I was new to soldering when left that comment and didn't know what was going on apparently

[@LeviBulger]

@@cirwo85 oh lol, sorry. I thought this video was new honestly. It just showed up in my feed and I didn't even pay attention to the timestamps. Anyway, cheers mate!

[@cirwo85]

@@LeviBulger nothing to apologize for. Thanks for the tip anyhow. Someone else could use it

[@murometz626]

I would tie a short string from the valve to the can body in case it pops out due to too much pressure.

[@onepercentile]

The drill shards enter the can and then get stuck in the spray head? Might be wise to punch a hole with a super sharp nail if it doesn't deform the surface any for soldering.

[@screwsnutsandbolts]

Good idea

[@pl5624]

If that pops out you're going to be missing an eye....

[@COOL-yx6ih]

😂😅we be by been

[@tonysicily2687]

A good point, well worth remembering to point that away from you while you use it, same as with any tool THINK SAFETY. A good point, well raised.

[@TheWhitde]

I have a heap of compressor gauges and outlets so my plan is... do above with a larger vessel, valve will ensure a pressure limit. Provided I can fill with my air compressor, it has a 3 stage moisture trap... so I can finally de-dust my pc without having to disconnect and take outside.

[@ronnieg6358]

Good idea! Depending on the contents of the can the flame could cause an explosion, that would be exciting. A big soldering iron might be safer, you would then have something left in the can to spray!

[@jeovannyainstainvelasquez3319]

from Honduras love this music

[@rob_erto]

I'm sure the flammable vapors ran away when he drilled a hole in the can😎

[@andr59]

@@rob_erto Fill at least 80% with water to avoid the problem of explosive gases that may be present

[@mjt11860]

SAFETY 1st. make sure the can is completely empty & DRIED OUT! otherwise u risk sparking a fire. fantastic hack! thanx 4 sharing.

[@TheLabOtomy]

Absolutely right on the safety part, thanks for adding

[@tanveerkhan9221]

That soldering was really good

[@paulvanos976]

I glued a funnel on the back of a mini vacuumcleaner and the blowingpower is eeeeh... mindblowing. Supereffective, cheap and easy to make.....

[@Digmen1]

Great video, but you need to tell us what that stuff in the blue can is. And more about the soldering.

[@ka-i]

Flux and I assume silver solder

[@zachphlowe3316]

Like Holiday driving the lane dishing a no luck assist to Middleton on the wing. Beautiful to behold. Much appreciated!

[@Chris-yy7qc]

This will only hold a very small amount of compressed air, because air cannot be liquified. So you would have to refill it after a few seconds of use. Thats why commercial compressed air cans are filled with lighter gas (butane gas).

[@TheLabOtomy]

True

[@witboj8281]

No, they are filed simply with CO2

[@alanhilder1883]

Air can be liquified.... but not a a pressure that could be contained in anything like that can.

[@nicku1]

Air CAN be liquified -two Polish scientists - Olszewski and Wróblewski did it in 1883 at the Jagiellonian University in Cracow.

[@richardj2927]

Commercial air cans filled with flammable stuff like butane ? definitely not for sure

[@jansolo55]

You can also do a painting can with this . If you drill a second hole and add a filling cap, with a seal, with the same method . Rinse the can, dry it . Now, you have to fill a half of the can with liquid paint , close the cap and introduce air through the valve, using a compressor , until you reach 6 or 7 bar pressure . And just painting .

[@steevo9656]

just add the paint through the valve, re-assemble and pressurize

[@jansolo55]

Yes , you're right, but it seems to me that can be difficult to add paint through the little hole of the valve, you don't think ?? And over time, the paint could partially clog the valve ?

[@SeekerGoldstone]

​@@steevo9656 Don't apply fire or heat to a can filled with paint.

[@Robert_Keel]

You are specifying the joint - what is the max safe pressure?

[@j.c.8149]

65 psi is a good preasure for this bottle mod. The limit is over 120 psi. But you must try with security method... Can be dangerous.

[@jeffbingaman2754]

Just use an air nozzle with a rubber tip. It will both fit over a stem if the spray nozzle is removed and just hold it against the hole if he nozzle and stem are connected.

[@midoomirza4009]

What materials do I use in welding?

[@IGOPU]

a welder

[@onepercentile]

@@IGOPU lol

[@cerrajerocadiz4310]

Estupendo pero como metes la pintura en el bote ahora? .... solo consigues un bote que tira aire nada mas? :(

[@ehtishamahsangondal6977]

what material did you used to weld the joints?

[@waldolemmer]

Solder

[@19wael96]

WARNING!!! For your safety do not make this, It's not designed to be used this way and it's just an accident waiting to happen.

[@luisp1174]

That looks like a easy to do fix for out of air issues, I’ll have give it a try and see. Thanks for sharing

[@medranovideohd6559]

I have an electric compressor, how many pci, should I put?...thanks

[@k1ortia]

Cool, but how much psi, I'd make one with a pressure valve so i know how much air is one can. Nice vid tho. 👍🏽

[@artest7]

What was your glue or contact cement you used please?

[@mueffe1357]

If you oh so desperate for an expensive can of air. You can use propane can for dusting. Same stuff they use. If safety is your concern and being a cheapskate too. A tire inflated to 40-50 psi with an appropriate attachment would do nice too. I airbrush toys using car tire as an air source. A nice learning experience.

[@brianhill1048]

Nice! next I'l have to figure out how to reload the can with color medium.... Could of course try to enter it through the same hole. But that hole afterwards is soldered so I would need to perforate ad infinutum to make this a good reusable toy.

[@johnbanks370]

I was waiting for the can to explode. If it had paint or another flammable in it

[@ToolBoys]

Nice Idea!

[@moacirg]

Aí o moleque faz o negócio desses e tem a "brilhante" ideia de levar ao posto de gasolina mais próximo e dar uma baita carga de ar comprimido no calibrador de pneus. BUUUMMM!

[@creative_expressionproductions]

you may want to mentions the can needs to be depressurised before you start to drill into in while holding the hand in your bare hand....

[@GeorgeGeorge-xj2bc]

Can the overpressurized air cause a hurricane?

[@TheLabOtomy]

It has also been known to start a revolution in El Salvador, so most definitely!

[@vladislavroytapel2830]

please let me know how good pressure and long lasting will it be ....is it compatible with original fill ..comes with chemicals ?

[@emp29]

Drilling while holding the can, did something similar before and almost punched a hole through my hand.

[@paulsuggs]

Same here, pulled muscle tissue out of my hand too

[@riyaazmohammed4495]

How long does the can spray continuously,??? Please anyone help me find the answer

[@joelcardosopereira]

Parabéns Presidenta Dilma Rousseff. Já conseguiram estocar ar!

[@jamesbarringer980]

Llofd

[@ermesonmenezes]

kkkkkkkkkkk

[@allef237]

@@ermesonmenezes caralho os mitos estão em todos os lugares kaksdkaskd

[@johnsonhenrique2831]

Bom pra estocar peido de cachaceiro!

[@linsande]

Ela queria estocar vento 🙄

[@bombblast9668]

Your reconciliation was very good. What did you use for solder in the blue bottle? Please reply with name

[@KILLAHJAYY]

its called TIN

[@OrieusNyam]

Excelente! Qual solda vc usou?

[@marcinxxx83]

Też jestem ciekawy :)

[@dioramagerry2581]

Super mais comment on recharche la peinture ?

[@blutrax]

I've got a hairdryer, it never needs refilled.

[@TheLabOtomy]

Living the high life hey....

[@inglouriousmofo]

@OK Boomer see your username lol

[@shadreckchidambo3975]

I have tried it this,yes it works but to refill that bottle you need kind of a strong pressure pump

[@josejose-jw1wy]

aprendi mais uma vez como fazer uma ferramenta vendo seu video gostaria de saber qual acido esta usando para soldar att

[@premyslkordula8481]

Mám otázku, čím jsi to potrel a čím jsi letoval? To asi nebude cin, nebo ano?

[@vicferrmat4492]

Thank you , great idea. This is so beautifully creative, a pleasure to watch. I am inspired.

[@russelblackwell6041]

MAN YOUR EASILY IMPRESSED did you have an anxiety attack

[@urvidsucks1]

Balls deep,toss his salad while ur at.

[@electric_mix]

Nice

[@amanofmanyparts9120]

Add a second sealable port and you can fill/refill the can with ... whatever.

[@thesuperjezz2740]

Spray on lube....

[@AdmmWldn]

a man of many parts ahh so your here for the same thing as me

[@AdmmWldn]

The Superjezz also a pretty good idea

[@daverea372]

Im guessing you could take out the valve with a common tire valve screwdriver, then use a tube or nipple on different squeeze bottle?

[@alexcordero6672]

Is that just solder on the valve base?

[@wolflicious8912]

Isn't this dangerous will the can explode under too much pressure?

[@TheLabOtomy]

See Description above or Pinned comment

[@Quimerateck]

If that was the case, the valve would pop out

[@andriandm]

What pressure is it suppose to hold? This nipple can kill someone easily when shoot off

[@caseyrevoir]

Adding the valve to an empty air duster can would be more effective I would imagine.

[@willywilmouth]

Génial, mais quel est ce type de soudure ?? Merci.

[@nappingpup105]

Safety Police Comment: At 0:32 video shows an awl trying to indent a hard curved surface. The action of the awl is directed at the opposing hand. Clearly an opportunity for a slip of the tool to perforate that opposing hand. Take note of shaky herky jerky action at 0:32. Never place yourself in the line of "fire" when using hand tools. Always wear your work gloves.

[@TheLabOtomy]

Thanks for intervening, that was clearly an unsafe situation I will reflect upon through my weekly Post Near Miss Review process

[@hintzofcolorconcepts]

all this while adding a valve stem to a spray can that could pop off at any time and poke your eye out while filling it, using it, or just sitting there because soldier weakened too much from the pressure.

[@whydohandlesexistAAA]

Chris Steele Jerking off and accidentally punching a hole in your hand are a little different, aren't they?

[@TheStigma]

So this is just regular solder brazing? I didn't know it was that simple to work with aluminium. Making a few of these so you can have unlimited rechargeable air would sure be handy - even if they wont last so long. I really hate to pay for compressed air cans. It just seems like such a waste - but in some cases they are just the perfect tool. I would definitely find a can to use that can use a long straw

[@FULLCEZAUM]

E se eu colocar tinta esmalte sintético dentro, será q funciona?

[@ussweeneyd]

Ok; great but, how do you refill the can with paint ?

[@dogemaximum4742]

Ok, I understand how to make a compressed air duster, but you still didn't teach me how to hack an empty aerosol can.

[@TheLabOtomy]

Busy sharpening the axe...

[@dogemaximum4742]

The LabOtomy I meant to hack it like a computer. It was a joke.

[@TheLabOtomy]

Hoooo

[@TheSatan222]

Doge Maximum you need a special usb

[@toxictoxic5454]

@@dogemaximum4742 .

[@ednietoz]

itu pake air cairan soldernya pake air keras ya gan??

[@wagnersantos9617]

E pra colocar a tinta dentro como faz🤔

[@andersonbruno7896]

Tira a válvula e coloca pelo bico

[@edisondelilaj8869]

What did you use to solder tin alloy or .?

[@FourSeasonsHD]

Soldering job is flawless and result is beautiful joint.

[@TheLabOtomy]

Thanks, not talent, just practice

[@magitingtv.7704]

Sending my full support Sir god bless you sir 🙏 from Philippines

[@ernestoore1381]

Calentar un en base de aerosol que haya tenido un contenido volátil es muy peligroso, podría explotar

[@TheLabOtomy]

Correcto

[@sergioferrer202]

Con todo respeto pero creo que es una boludes hacer ese soplador si quieres soplar con el culo lo haces mejor 🤣🤣

[@Baldavier]

Is there any adapter to pump air into the top instead of making a hole? Or could one be made?

[@Scanz_99]

what did you use for solder ?

[@TheLabOtomy]

Best is to use brazing rods, understand their properties and never over-pressurize the container

[@Scanz_99]

thanks

[@got2kittys]

matteo scanziani thats a good question. It looks like......solder.

[@maritatanner3190]

solder solder

[@denisdb725]

Like this very mutch. And I have a question. I use pretty mutch of a certan spray, dut every bottle it is the same problem. The pessure is empty, and the bottle still has more than 1/3 of product inside. Sence the prodi-uct is not sheap it is a large lost of product but more a big lost of my money. Any idea how to refill the presure is a simular thank? Of course making a hole is not done at this point.

[@вадимонфакичевский]

Любой флюс

[@fhuber7507]

how to create something that can easily explode in your hand. the aerosol can is only designed for one fill-empty cycle. Each cycle stresses the can. A few cycles and that thing is going to pop. DO NOT DO THIS.

[@bobbyhempel1513]

SimpleGamingF2P you're not to bright

[@WoLpH]

Actually... 100 psi is not uncommon for racing bikes at least, for regular bikes I personally do between 60 and 70 psi.

[@justins.1283]

I pump bicycle tires to. 85-110 psi easily even that is more than enough for a duster. Personally I'd thread a fitting in through a hole then solder it.

[@Impossible2500]

i think bevore the aerosol can explode will the valve pop up from the can. The solder connection will never be stronge than the steel. I think this construction is idiot safe^^ But only a Test can 100% prove this^^ who test it^^

[@alecdq7623]

@Reno Simpson You are crazy???!!! 100 psi to your bicycle tires?? You must pump it between 25/35 psi

[@jayace4424]

Super neat soldering

[@XXIIXIIIXXXIXXXIX]

Luvin that intro, good video!

[@TheLabOtomy]

Thanks for the feedback, appreciated

[@notforsale1264]

@@TheLabOtomy ,tbh the intro sucks , gave me a wannabe scientist chanell vibe but the content is crab .

[@davetaylor2449]

I am having a hard time soldering because the brass valve does not want accept the solder

[@runstreetsofvegas]

Impressive I thought you was going to epoxy it. I was like wtf. Looked again and seen solder.

[@SoSo-vm3jd]

ผูที่

[@SoSo-vm3jd]

ย้อๆ

[@Biokemist-o3k]

Beautiful!!! I am absolutely going to make a few of these for all my solvents etc...

[@rogercamp6071]

I'm surprised that it worked so well,my dad had a similar idea and when trying to solder a fitting to the can the plastic spray nozzle melted,his idea was for making a cheap refillable paint can though.

[@nullvoid564]

Probably should have mounted the valve on the bottom or side that way you can keep the plastic parts and nearby metal immersed in water to protect them. though you need to pressurize the paint and it cant be too viscous and if it dries within the nozzle its over

[@blondisbarrios7454]

What materials did you weld with?

[@dmitrij_nesterov]

Круче аэрозольного аэрозоля может быть только аэрозольный аэрозоль из аэрозоля.

[@golibjontolipov8216]

😂😂😂😂😂😂😂😂😂

[@farrakhshahzad3143]

Can I put inside some liquid for mosquito killer

[@kolerasic924]

Bravo majstore

[@TheLabOtomy]

Hvala

[@ESLinsider]

Good idea with putting the bike tube thing on that little stick.

[@davidnanze8697]

Dangerous. and whats the point.

[@scootergeorge9576]

What is in the blue bottle with red lid? And what kind of valve stem? Does not look like peseta or Schrader.

[@しあわせアフロ-e1p]

スプレー缶の再利用は破裂の危険があるからやめた方が良い。

[@mintkamagata8949]

チャリ空気入れで金属缶が破裂するほど空気いれられるわけないｗ アナルでも平気、コンプレッサは死亡例あるが

[@zelenkin1sergey]

Всё ерунда - такой баллон можно использовать только для сдувания пыли - краску не распылит- краска будет писять струйкой. потому что для краски заправляют специальный газ, который расширяется при распылении.

[@zendandrei4286]

А про краску речи вообще не было. Баллон для простого воздуха что бы сдувать пыль например.

[@MegaMozart13]

Ты не поверишь! Все газы выходя из баллона при распылении расширяются! А вот в балон закачивают инертные газы, а не воздух, в котором краска сохнет.

[@zelenkin1sergey]

@@MegaMozart13 хочешь сказать что если закачат ьв балллон с краской обычный воздух, то он будет распылять краску не хуже инертного газа?

[@picancoap]

@@zelenkin1sergey Аэрозольная краска производится с использованием бутанового газа, а не воздуха. Затем краска выходит вместе с расширяющимся газом и переходит в газообразную форму, как только она покидает цилиндр, что способствует более тонкому туману, в противном случае для такой же работы требуется гораздо большее давление.

[@zelenkin1sergey]

@@picancoap А я что, что-то другое написал? прочитай мой первый комментарий, под которым ты доебался до меня.

[@SureshKumar-nk2ok]

thank u very sir . is it aluminium filler wire ?/

[@jean-baptiste6479]

"don't drill even when empty". Drills it.

[@persona83]

Because rules are made to be broken.

[@saintanthonygoodchild1288]

What will happen? I want to do this but comments are concerning.

[@mikevincent6332]

empty means 'empty'

[@nastykamaleon472]

Shut a fuck up

[@inglouriousmofo]

@@saintanthonygoodchild1288 The can could explode if there's enough pressure

[@xSO20]

What type of filler metal is that?

[@arnoldsimmons5289]

When I cut paper, I do it over a garbage can.

[@TheLabOtomy]

That is a really good thing to do, keep on doing this by all means!

[@Dan0rioN]

Would this be the exact chemical component as air duster!?!

[@rogerdavis149]

someone is going to lose a hand maybe a life doing this crazy stuff. that cans not made to take near the pressure that a compresser or even a bicycle pump puts out. and pouring water on a fresh solider join makes it weak. cools it to fast.

[@TheLabOtomy]

Just like everything in life, excess is bad and can lead to injuries. So yes, over-pressurizing a container can cause it or the joint to fail. This as a result can hurt you, yes. Also, good point about the fast cooling, quenching/cleaning of the flux was done here with hot water.

[@motoNudziarz]

Areosol can has on average about 40-60PSI (2,7-4BAR), and has to be tested to 120PSI(8BAR+). On average the can is damaged at over 200PSI (almost 14 BAR). Average good quality bicycle pump is rated up to 85PSI (6 BAR). As a matter of fact, pumping air into areosol can is very inefficient- because of quick loss of pressure. Standard cans use liquid propellant, which vapouring is providing constant pressure for long period of time (in comparison to compressed air).

[@TheLabOtomy]

Data driven answer, I like

[@markfarrell9344]

ice bank myself

[@iviaverick52]

You realize that the CO2 in canned air is 145 PSI, and bike pumps barely put out 40... right?

[@vjvivishnu205]

Hi brother your video is very very helpful and easy to understand . Soldering liquid and soldring led where did u buy it? Sir

[@СПб.Байкер]

гавно вариант, я как-то делал такое, насосом не накачать в него много воздуха, хватает всего на пару пшиков........

[@TheLabOtomy]

благодаря

[@МаксимМаксим-б5х]

в велосипедную камеру обычным напольным насосом накачивал 8 бар

[@Victormiranda22]

I concur

[@ariswicaksono8965]

Sebelum dilas dioles cairan apa ? Pakan las nya pake apa ?

[@Sdelay-Sam777]

I've already done this. A simple lesson ...

[@Bhai_From_Bihar]

Can I fill it using bicycle pump And how many pumps can I do with it

[@davethacker8410]

The black ring near the bottom looks like rubber. I bet that is two piece and the bottom bit can be removed or unscrewed.