A non-diver once asked me "Why do do you have to buy air? If the tank is empty, why can't you just open the valve and let air flow in?"

When I got scuba certified, I was very surprised to find the regulator to be super simple and basic. Even the tank and the first stage are relatively simple. Great vid!

That's blowing my mind how simple the mechanism is, considering how vital it is for survival. I just assumed it was intricate gears and gadgets in there. Thanks for sharing.

A new Jonathan upload during breakfast? Yes please

That's awesome! One little thing i would have liked to hear is the actual part that ensures the air pressure is the same as the environmental pressure, rather than the 10 bars. As soon as the lever gets pulled, the 10 bar air flows inside the second stage. That air presses the diaphram away from the lever. As soon as the pressure inside the second stage is the same as the environemntal pressure, the diaphram is pushed so far out, that it is in its initial state and is no longer holding the lever down, airflow stops, and thus the pressure won't increase any further.

Thank you so much!! Now I got it! And this is also the first time I saw the inside structure of that equipment. That's just amazing! You are the the best!!!

Bravo! This is the best possible video on this topic. Thank you so much!

Just what I needed to know, simple, short, technically, with showing smal parts and everything important. Thank U!

Some things are best kept simple, with as few parts as possible. Fewer parts = fewer things which could go wrong. Also, being able to take it apart like that must help, so it can be cleaned & worn parts replaced easily. PS: awesome ray tshirt!!!

When you walked away from the tank (stepped out of the frame), I felt it in my gut and instictively tried to jump to hold the tank. I'm trained to pretty much treat tanks like potential bombs. Nice explanation of the regulators, this is a video I can refer my students to if they ask about it. Newer/'high end' models also have a venturi system built into them, but I've never been able to tell the difference when breathing. Then again, the adjustable breathing resistance knobs never feel like they do anything for me either, so I guess I'm just really not picky with regulators. I do notice that they free flow really easily when sensitive, so there's that.

Awesome video! About a year and a half ago I got my own regulator set, and it’s been a game changer. We had a few bad experiences with rental regulators, so we decided to get our own!

That is the best explanation of how a reg works that I have seen yet. Thank you!!

Thank you Jon for taking your reg apart and do the explaining. Job well done!

What a simple and yet very interesting and captivating explanation! Great delivery. Thanks

Thanks to share it sit. Is amazing how scuba dive came so far, the first scuba divers when through so much in order to enjoy this beautiful underwater world.Jacques Cousteau my favorite scuba diver make it possible for us. Now we have scuba gear make it so much easier for us! Knowledge is power! Thanks again sir and I wish I can scuba dive one day with you and your crew.

When it comes to mechanical design of equipment that represents life or death, the simpler mechanical operation the better. I wouldn't want a regulator designed by BMW if you know what I mean.

Like a heart valve. Very simple. Thanks for sharing.

Thanks!

I wish this video had been played when I got certified. Always wondered how they work, but never took one apart to see

That’s a great video. Don’t forget if you turn the regular upside down so the exhaust valve is facing upwards then the water will flow in.

Thank you for sharing!!

Great video...enjoyed very much nice job! Thank you.

you are a natural teacher.....you would make an excellent teacher/professor. very clear well thought out presentation and excellent understanding of the subject...well done...wish you were my chemistry teacher in high school...even though this wasnt a chemistry lesson i have a feeling you might be good at it. :). and i failed it :(

This guy makes me want to dive more. Great videos.

Thanks a lot

you explained it so damn easilly ! thanks ! I'm having my diving lesson next week in Krabi Thailand!

Awesome well explained video! thanks guys!

Fascinating video. Thanks very much.

Cool shirt Jonathan bird! Thanks for like talking about safety measures and equipment famileerization.

Your engineering diploma sure helps with understanding those things, huh ? Super interesting, I didn't know how it worked !

best, most simple, explanation I've ever seen. thanks!

Thank you...I was looking for how to inhale and exhale and couldn't find info until I stumbled on this video...thanks a lot

YOU EXPLAINED THAT PERFECTLY! I watched other videos before I came across this one, and I didn't quite understand until You Not Only Explained but ALSO Demonstrated Beautifully! THANK YOU! Sending Good Vibes your Way! :D

Wow. Couldn't believe it was a 8min video. Great explanation.

Thanks for the video! Two questions - 1) Why are there no diffusers that fit on the regulator exhaust to break up and quiet the bubbles? 2) Where did you get that awesome shirt? It's really nice looking.

Another number to help wrap your head around how compressed that air is atmospheric pressure that you feel just watching this video is 14.1 psi.

Can you do a full demonstration like this but with a kirby morgan helmet?

Interesting. Thank you for the video!

My man jonathan got us covered with all the diving questions, gotta love the lad

It would be interesting how does the first stage of regulators work? In my opinion it's much more complex.

i love the way this is taught. keep it up and thanks for the detailed information.

You really do know how to explain something 👏👏

Great job describing the system Jonathan.

you are legend, wonderfully illustrated thanks

Well explained sir,Especially my confusion about exhaling process and flapper valve working.the flapper valve is same as purge valve in snorkel !!!.thanks for simplified explanation.

Very clear, systematic, and simple information, nice sir! Thank you

Great video. Thanks!

Always happy to see you upload!

Perfect explanation. Thanks!

05:50 ...what no Star Wars reference?! Grate video by the way!

Fun fact paintball tanks can be filled up with scuba tanks and some paintball tanks can hold 4500 psi

yay! I've been waiting for someone to do a good video on this!

very nice and cool demonstration! can't wait for your next dive!

That's given me an idea to improve my gear testing. Try to inhale when the tank is off to see if you get the deadmans suck. If not you'll have a dodgy seated/ ripped mushroom valve or diaphragm.

I don't dive, but I'm a big fan of your videos. Slightly off topic @2:24 "the real question is.." Is that a south bend lathe? Do you ever make your own parts for your camera gear or scuba support projects? Would love to hear more about how the "fabricator" side of your life, can help out in your field adventures

Great video explaining everything

Nice!!!!

Thankyou for your demo on how it work so that I can do in DIY only because I don't have enough money buy a regulator

If second stage regulators are so simple, what causes the crazy price differences from $50 all the way up to $1,000?

More simple than I thought

Bike tires are about 40 to 50 psi

It's time for class with Mr.B!

Awesome video thanks😃👍 But I'm still trying to understand how the regulator "regulates" the pressure to the correct atmosphere🤔 How does the 140 psi get dropped to the correct pressure to breathe?

I miss you adventures and etc♥️

REGULATORS! mount up…

Great video. I thought there was a lot more to those things haha.

Nice informations for beginners like me :)))

Hey jonathan awesome video. And even more what an awesome T-shirt where can i get it?

I'm not an expert on the subject so please mind my question: What happens if the regulator fails during a dive? Is there a protocol to follow or a safety measure in place in order to avoid tragic incidents?

A lot simpler than I thought

What’s the difference between a regulator like that, and the overhead one that you usually wear?

5:16 😆

Excellent video, I am new at learning scuba diving...question, using a hookah regulator how do you know when your adjustment screw is at ideal setting? My pump system only gets around 20 psi...but many guys are able to breath well at a depth of 15 feet when regulator is adjusted correctly for them using exact setup as I have...can you adjust regulator screw correctly without having to use in water first? Or is it trial and error..? Thanks for your information

Cool. Does much water come back in the exhale valve when it goes from open to closed? (A video on rebreathers would be awesome!)

Ok, easy! So where the pressure is controlled to the depth pressure?

But how does the first stage keep a consrant 140?

Why regulator starts to free flow in mouthpiece up position. I dont understand. Is water pressure somehow press this lever button in this position?

I wonder what it would take to make a tank that could hold 10k PSI, probably would be pretty thick metal. Im sure it would be nice if you could do that tho ha.

Are those flapper valves prone to leaking? Do you sometimes suck water into your lungs because of a leaky valve?

What do you do if some water gets in there?

Mr.,i want to ask

I think I just found the Scotty Kilmer of SCUBA.

Dude, your a gear head?! Saw the stickers on your tool box. What do you have?

they are so simple companies just throw fancy colors om them to make you pay more when they are exactly the same as the 20 dollar you find on amazon

When exhailing on cave dives isn't it a problem whith the bubbels hiting the extremely fragile cave formations and damaging?

What happens if your regulator has water go in

Shorter exhaust valves dont matter if you're in trim!

which reg is this ?

Who do you have service your double hose reg? Or do you just roll the dice? Haha. :)

What kind of regulator is the one you use in this video? Looks like the bubbles come out behind you. kzfaq.info/get/bejne/n5eHnpSmycq0m6M.html

Ohhhhh, that's why regulators can handle vomit. 🤣 It seemed like magic (where did it all go?) that if you get sick after you've entered the water, you don't have to surface and can feed the fish at the same time. 😝 eeew Thank you, educational and pretty neat. 🙂

Thanks for not covering the first state mechanical operation.

So simple... SO WHAT THE HELL DO WE PAY ALL THAT MONEY FOR??