Thank you for jumping right into the details. I enjoy it when there is less lead-up

I’ve been watching this channel for a couple of months now since I did a trial dive on holiday . I’m glad to say I have completed my open water online course and am just waiting for my open water dives. Loving this in-depth series and your videos on the courses . Thank you 👍🏻

Nice review. The things forgotten when you haven't had to replace your regulator in a few years. The refresher is well worth the time spent. Thank you.

James, thank you for informative video. What I like to add is, indeed, the size of the ports. HP port is slightly larger an often has only a very narrow hole in the bottom to limit yhe HP flow (we are interested in pressure, not flow), The HP port is well visible in the XTX50 second stage (which is, indeed Apeks DST). The threads are well standardised so any (modern) lp hose fits to any port (except HFLP port) and any HP hose fits to any HP port independent on manufacturer.

The “equipment specialist” course I took really taught me a lot about maintaining gear in between service. This video is every informative and can’t wait to see what you pump out in the future!

Love this series! I just bought a new set of regulators so this is a nice recap 👌🏻

Hi James. Loved your segment today. You are very good at explaining what divers need to know. I have been a service tech for about 30 years and teach the equipment course. But you make it look easy for the beginner. Looking forward to more. Two thumbs up 👍👍

Great job. Important information very well explained. I’m looking forward to the rest of this series. Thanks James.

Good information! Thanks for the breakdown.

As always a video full of useful information transmitted easily and effectively thanks James a hug from Azores

Love your videos! And really enjoyed listening to you on the League of extraordinary divers!

Great video James it was so informative, please do more equipment videos ! I discovered your channel recently and I've been binging on all your uploads. There are not a lot of content creators for scuba diving and your videos allow me to train in my head when I'm away from the sea. Love from India !

This is great! Looking forward to the rest of this series. I feel even as an advanced diver I really never learnt much about how the reg equipment worked. Was only when I did my rescue course that I learnt more. I feel like most divers wouldn't know what the two stages do or what yoke Vs Din is

thank you james, I was hoping that you could do tech series and now i am glad

Thank you once again James. Really informative and I’m looking forward to the rest of the series. (Hope you had a good birthday 😎).

Great informative video 👌

Thanks James! Love your content and learned alot with your channel. Recently became an open water diver and getting more familiar with the gears and my skills before progressing up or down in this case 🤣

James, Thank you for providing this information. I am in the process of buying a first stage and second stage. This was a wealth of knowledge and I look forward to your future videos. I would like to hear the debate of diaphragm vs piston as I am not aware of the pro or cons of each.

Looking forward future instalments of this regulator series!!! I'm a DIN user FYI...

Answered my questions!

Another solid video!

Great video James like all of previous. One thing you did not touch in this video is cold water regs or EN250, and how it is affected by mix and match first and second stage. I believe that some manufacturers will push you to buy pre approved set of second stages if whole reg is to be cold water regulator

It seems difficult to buy anything decent from the second hand market you need to get a smoking deal in order to have it still be a good deal after paying a dive shop to service them. I bought two new sets of entry level regs from my LDS, when I took them in for their first service two years later I paid half the cost of when they were new for the service. For my next set of regs I'm looking at a brand that will sell the service kits to the end user and has service tech classes for the end user as well as I am not associated with a dive shop. Good video I learned something about matching IPs between first and second stages.

Lol ive been looking for a 1st stage an thia vids only 4 days old atm...nice

Laughing so hard from the thought of drinking from a fire hose that I missed the first part of the information 😂

Nice info mate

Great video! ,One very minor correction, 135 to 150 psi is certainly not "10 to 15 bar" !! there are 14.7 psi in each bar, so typical IPs are nominally between 9 and 10 bar. 15bar (220 psi) would be considered a very high IP, and is starting to be enough to cause a freeflow in non pneumatically balanced 2nd stage or perhaps worse, be high enough to push open the valves on your BCD of drysuit inflators! (next stop, the surface!!). The lower pressure hoses, that confusingly carry the IP tend to have nominal rating of around 17bar ( 250 psi) but their burst pressure is going to be very much greater in practice (unless damaged) at typically over 400 psi (27 bar)

I like how you have the transmitter in a short hose. I’m assuming it’s so it doesn’t get sheared off by accident.

Quick correction, the 1st stage is a DST not an XTX50. The second stage is the XTX50.

James could you talk about cold water diving vs warm water diving regulator ?

Nice video! You talked briefly about the titanium first stage. I’ve read on forums that titanium isn’t good in cold water... why?

Actually the Apeks Din first stage is a XTX DST regulator not an XTX50 that’s the second stage on the table.

Why is the reserve also called an Octo / Octopus?

it's common, when purchasing new set that 1st stage has the same serial number as 2nd one 🤙

James, do you have a recommendation for a 3mm suit for a big guy? im 6'2" 290 lbs. 54" chest. Thank you!

I wonder will 3d printing make more innovative regs. Regs have not innovated that much for decades. They're still heavy, prone to freeflows, hoses are still inflexible and 2nd stages hide half your face. There are "lightweight" regs and ice water varients but otherwise...