![Raum](/data/avatars/l/38/38095.jpg?1649384813)
Raum
Member
- Mar 8, 2022
- 44
Hello friends.
After short discussion with @Greenberg and my own analysis i decided that the best exit option for me would be the scuba method.
I find the nitrogen exit bag option back is overall fickle and it leaves the door open for a lot of user error, while with the scuba method, it us more expensive and harder to prepare but it eliminates most user errors afterwards its set up properly. Valve open, mask on, and were set.
That being said ive been trying to replicate it using the guide let to us behind by a german user on @Greenberg "s blog, but i ran into some issues, that im hoping anyone with knowledge would help me solve, while also serving as another clear method and guide for people to safely replicate ( besides that one, which is in germany, and uses german sources and data. Im in the uk.)
I have found that almost all over the internet, including this blog, the information on SCUBA cbt is SEVERELY lacking. The only real true piece of information being posted on the nitrogen exit blog.
Once and if my issues are solved, this should and could be used as another alternative add on information guide , adding on the previous one, and expanding sources/clearing up questions that haven't been adressed.
So.
I have done my due diligence, and with the help of google lens, i pinpointed and bought the materials necessary as closely matching to the ones being described in the Stickstoff Method.
The mask is the same, albeit from another vendor, pegasus.
I didn't find the exact one from the same vendors, but this seems identical and i can verify its quality, air sealing tightness, and that it fits airtight with the second stage mouthpiece of the regulator.
I had doubts that it won't flush out exhaling if it gets too shallow, but i have tested it and it worked just fine.
The adapter for the cylinder was very hard to find, and i did actually need to buy it from a german site. The 200 bar to 200 bar nitrogen converter. 1 week later it arrived.
Where im facing difficulties currently is the tank- 1st stage regulator connection.
In the Stickstoff method left by scrooge, there was no mention of what kind of valve exit should the tank have, only the pressure ( 200 bar) , purity, sizes, and a chart explaining how it would work.
So i went ahead and bought a tank with those configurations, and low and behold, its a different valve.
The seller told be its a "screwing valve"
As shown in the pictures ill attach, its a female valve, so the adapter has no way of connecting to it.
Another discrepancy i found with the guide is that its stated you need to buy a "200 bar DIN first stage valve".
The problem is.. after lots of googling and digging on scuba forums, the 200 din type regulators are almost extinct.
You couldn't find one even if you wanted, and it's standard for any regulators nowadays to have 300 bar din valves.
After further reading, i didn't bat that much of an eye, because on the forums people said it should be well able to connect to a 200 bar tank, with a 300 bar regulator.
The whole idea being it wont work if you wanted to connect a 200 bar regulator to a 300 bar tank for example.
(But an important note here, is that even that theres the same connection ( DIN) a din 200 connection had 5 metalic threads, and a ( DIN) 300 one, the one i have, has 7-8 threads i think. It is the same type, but longer.)
So thats fine, but back to the tank-1st stage connection.
Because there were no further instructions, i purchased a tank like that, and now im seeing i cant connect it using the adapter.
Is it because of regional differences? If you bought this from germany it would've come with the correct valve being pictured in the guide? Perhaps, but i cant know.
Im from the uk, so i bought what was available.
Apparently, im still able to connect the first stage to the tank without any adapter though. It screws right in.
The problem is.. it doesn't screw all the way in. As you can see, 2 threads are being left out, and i screwed it as far as i could with my bare hand.
Upon the opening of the tank, a very loud hiss is heard, and i can feel the gas escaping around my hands.
I closed it back up, and pressed the purge button on the second stage of the regulator, it pushed out some gas.
Therefore gas flows into the regulator and the hose, but a LOT of it just flows outwards.
I also couldn't test it too much because... Its extremely loud. Pressurised air kind of loud, and i live in shared accomodation.
I sincerely hope it won't make this loud noise once i get the correct fit, because this might throw off my attempt, and a lot of other peoples attempts indefinitely.
Leave this running as is and it would definitely alert people in your house/next room. Hopefully its just so loud because the connection isn't proper.
Could my problem be solved if i buyed a wrench and hard screwed it all the way through?
Would that solve it or break the threads?
Do i need to buy a different adapter/regulator?
What exactly am i missing and what is needed to complete my build?
Any help and knowledge is vastly appreciated, as im doing this first and foremost for myself, and i have no other exit strategy ready if this one falls for some reason.
For now, the pictures of the equipment will be sent on request via private messaging.
After short discussion with @Greenberg and my own analysis i decided that the best exit option for me would be the scuba method.
I find the nitrogen exit bag option back is overall fickle and it leaves the door open for a lot of user error, while with the scuba method, it us more expensive and harder to prepare but it eliminates most user errors afterwards its set up properly. Valve open, mask on, and were set.
That being said ive been trying to replicate it using the guide let to us behind by a german user on @Greenberg "s blog, but i ran into some issues, that im hoping anyone with knowledge would help me solve, while also serving as another clear method and guide for people to safely replicate ( besides that one, which is in germany, and uses german sources and data. Im in the uk.)
I have found that almost all over the internet, including this blog, the information on SCUBA cbt is SEVERELY lacking. The only real true piece of information being posted on the nitrogen exit blog.
Once and if my issues are solved, this should and could be used as another alternative add on information guide , adding on the previous one, and expanding sources/clearing up questions that haven't been adressed.
So.
I have done my due diligence, and with the help of google lens, i pinpointed and bought the materials necessary as closely matching to the ones being described in the Stickstoff Method.
The mask is the same, albeit from another vendor, pegasus.
I didn't find the exact one from the same vendors, but this seems identical and i can verify its quality, air sealing tightness, and that it fits airtight with the second stage mouthpiece of the regulator.
I had doubts that it won't flush out exhaling if it gets too shallow, but i have tested it and it worked just fine.
The adapter for the cylinder was very hard to find, and i did actually need to buy it from a german site. The 200 bar to 200 bar nitrogen converter. 1 week later it arrived.
Where im facing difficulties currently is the tank- 1st stage regulator connection.
In the Stickstoff method left by scrooge, there was no mention of what kind of valve exit should the tank have, only the pressure ( 200 bar) , purity, sizes, and a chart explaining how it would work.
So i went ahead and bought a tank with those configurations, and low and behold, its a different valve.
The seller told be its a "screwing valve"
As shown in the pictures ill attach, its a female valve, so the adapter has no way of connecting to it.
Another discrepancy i found with the guide is that its stated you need to buy a "200 bar DIN first stage valve".
The problem is.. after lots of googling and digging on scuba forums, the 200 din type regulators are almost extinct.
You couldn't find one even if you wanted, and it's standard for any regulators nowadays to have 300 bar din valves.
After further reading, i didn't bat that much of an eye, because on the forums people said it should be well able to connect to a 200 bar tank, with a 300 bar regulator.
The whole idea being it wont work if you wanted to connect a 200 bar regulator to a 300 bar tank for example.
(But an important note here, is that even that theres the same connection ( DIN) a din 200 connection had 5 metalic threads, and a ( DIN) 300 one, the one i have, has 7-8 threads i think. It is the same type, but longer.)
So thats fine, but back to the tank-1st stage connection.
Because there were no further instructions, i purchased a tank like that, and now im seeing i cant connect it using the adapter.
Is it because of regional differences? If you bought this from germany it would've come with the correct valve being pictured in the guide? Perhaps, but i cant know.
Im from the uk, so i bought what was available.
Apparently, im still able to connect the first stage to the tank without any adapter though. It screws right in.
The problem is.. it doesn't screw all the way in. As you can see, 2 threads are being left out, and i screwed it as far as i could with my bare hand.
Upon the opening of the tank, a very loud hiss is heard, and i can feel the gas escaping around my hands.
I closed it back up, and pressed the purge button on the second stage of the regulator, it pushed out some gas.
Therefore gas flows into the regulator and the hose, but a LOT of it just flows outwards.
I also couldn't test it too much because... Its extremely loud. Pressurised air kind of loud, and i live in shared accomodation.
I sincerely hope it won't make this loud noise once i get the correct fit, because this might throw off my attempt, and a lot of other peoples attempts indefinitely.
Leave this running as is and it would definitely alert people in your house/next room. Hopefully its just so loud because the connection isn't proper.
Could my problem be solved if i buyed a wrench and hard screwed it all the way through?
Would that solve it or break the threads?
Do i need to buy a different adapter/regulator?
What exactly am i missing and what is needed to complete my build?
Any help and knowledge is vastly appreciated, as im doing this first and foremost for myself, and i have no other exit strategy ready if this one falls for some reason.
For now, the pictures of the equipment will be sent on request via private messaging.
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