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Hey! am sure any or many of you guys have that in mind or in documentation somewhere! I have purchased and serviced many mk20 (got like 8 for me... and others) and was looking for more informations about years of constructions, changes of design and so on. History stuff and data related to...

Why do we want a minimum amount of space between the 2nd stage lever and diaphragm making us able to hear a bit of tapping before closing with the cover? I guess we want as little as we can but dont want any tension on the lever as well to avoid being close to freeflow. So why and how much? can...

Didnt find a dedicated topic yet. What are your thoughts about round vs oval Corrugated hoses? Pros and cons, just wondering so far why not using all the time a round one, so far my understanding is bigger diameter, less resistance to the air passing through. Seems like the round ones are...

Did some other scuba material maintenance as regs and went well so far. Decided to get to Alu tanks which were thrown and not maintained since a loooong time, and probably filled with not that great air. Will stay on non oxygen tanks, thinking about air only. So after having the troubles with...

Bought a coltri MCH6. Air filter was changed 1 year ago and used for a few minutes only. On the first fill of my tanks the air was wierd. Am waiting for a replacement cartidge, but takes it time to get here in south america :(. Filling my tanks and specially after when turning off the...

Hey all! just acquired a year ~2000 coltri MCH-6 am wondering if you guys can help me building up for all people (and our children ;)) a list of does and dont with your own compressor! Maybe there are some stuff which are brand/model specific and others which are general. Beyond the famous RTFM...

Am doing my padi IDC and had a question (dont remember where...) about second stage reducing the IP to the ambiant pressure the diver needs... am really not understanding how that can be. From my understanding, correct me if I'm wrong. IP is around 8-9Bar + ambiant pressure 0m=8-9Bar + 1Bar |...

Hey Folks! I'd like to be able to assemble and dissassemble my light (and other models have the same glass and button bolts). Using an improper tool, I cant measure the tork am applying to these, specially the little plastic one I broke last time I screwed it (up :D) Didnt find any name for...

On each scubapro 2nd stage's inhale valve cap there is a stopper pin. Think everybody knows what am talking about Pros: Cant unscrew itself ... Cons Cant unscrew it on battlefield without a tool you never have if you remove this pin, there's a leading hole (any issue with that in your...

Starting servicing 1st stages, it seems that IP too high is a pretty common simptom, I was wondering Why does that happen with time? Not sure it does on pistons but seems to be the case. Does the spring loose elasticity? If so IP Should go down with time as far as I understand. And what is the...

Hi everyone! recently bought 2 dive watches to go for diving with the head instead of just reading the computer. I'm diving a semi-dry scubapro novascotia 7.5mm which makes me unable to wrap my new watches around my suit even if my wrists are not that fat ;). I'm wondering who has good...

Hi folks! What about 1st (first) stage Metal filter cleaning I heard the ideal would be to change them, but what about cleaning? And if you dont have any other solution, in the mean time your new one is on its way, how would you clean them? Thx

Hi, anybody can help me identifying that 1st stage which has been said to be model warrior and same spare parts as an apex XTX200? Thx!!

New to scuba repair, I have a bunch of playing tools that have been given to me to repair/service/save-if-you-can. I serviced 2 second stages with o-ring kits provided by constructor. For the rest, I was wondering what do you guys recommend in terms of how to have a set of o-rings you can use to...

Hi Folks, Was wondering what of those considerations apply to scuba equipments. To grease! protects surfaces from corrosion protects surfaces from stuff to stick on it, depots, etc makes assembly and disassembly way easier makes able to screw better/stronger with appropriate torque as it doesnt...

Hi Folks! Was wondering What is that piece which is delivered with my wing and what is its use? What for is the scubapro buckle hole for?