Alex Fermentopathy
Experienced
- Feb 25, 2024
- 240
In the begginning of past month I had one failed attempt with gas setup (an industrial helium tank with 99,99% purity declared, a flow control, an exit bag). I just woke up when the gas flow ended.
Now I understand that made at least two mistakes.
1. I kicked a tank off while being unconsciousness. So it fell on the floor (tubing still was okay, it was even hard to remove from a flow control). The instruction of the flow control says it is forbidden to use in the horizontal position. I have read somewhere when the tank lies horizontally, then liquid fraction of the gas will go to reductor/flow-control, not purely gaseous one as it should be. And therefore most regulators/flow-controls do not work correctly in horizontal position.
I hypothesize that due to that mistake the gas might flow way too fast after the fall, so I did not get enough exposure to hypoxia (sadly I did not mark the timespan of unconsciousness).
I should had tied the tank to the leg of the chair or probably buy a special gas stand for that.
I think that's the most likely explanation of my fail.
2. I had opened the tank very slightly, because it seemed more than enough to set 15 LPM (the knob of the flow control was also opened minimally). The arrow of the flow-meter was jumping from more to less, but it seemed like on average it was about 15 (the flow was enough, judging by the fact that I lost consciousness very quickly, just in a few breaths).
Now I have read already on this forum that I should open it at full, but it seems like no one here explained exactly why. Who knows, what exactly goes wrong if you open it slightly and how likely is it to be the reason of failure?
3. May be the exit bag collar was not snug enogh. There was some space between the neck and the collar of the bag, so I could enter a finger here without stretching the bag. Is it to much space?
I think maybe that matters more when you lie than when you sit. I started sitting on the chair, but ended up lying on the floor (fall off while unconsciousness).
If that's so, then it would be better to tie myself to the chair, not only the tank to something.
4. Also, may be a very high levels of biotin (vitamin b7) in the blood was protecting me from hypoxia. I take it because of my disease.
Now I understand that made at least two mistakes.
1. I kicked a tank off while being unconsciousness. So it fell on the floor (tubing still was okay, it was even hard to remove from a flow control). The instruction of the flow control says it is forbidden to use in the horizontal position. I have read somewhere when the tank lies horizontally, then liquid fraction of the gas will go to reductor/flow-control, not purely gaseous one as it should be. And therefore most regulators/flow-controls do not work correctly in horizontal position.
I hypothesize that due to that mistake the gas might flow way too fast after the fall, so I did not get enough exposure to hypoxia (sadly I did not mark the timespan of unconsciousness).
I should had tied the tank to the leg of the chair or probably buy a special gas stand for that.
I think that's the most likely explanation of my fail.
2. I had opened the tank very slightly, because it seemed more than enough to set 15 LPM (the knob of the flow control was also opened minimally). The arrow of the flow-meter was jumping from more to less, but it seemed like on average it was about 15 (the flow was enough, judging by the fact that I lost consciousness very quickly, just in a few breaths).
Now I have read already on this forum that I should open it at full, but it seems like no one here explained exactly why. Who knows, what exactly goes wrong if you open it slightly and how likely is it to be the reason of failure?
3. May be the exit bag collar was not snug enogh. There was some space between the neck and the collar of the bag, so I could enter a finger here without stretching the bag. Is it to much space?
I think maybe that matters more when you lie than when you sit. I started sitting on the chair, but ended up lying on the floor (fall off while unconsciousness).
If that's so, then it would be better to tie myself to the chair, not only the tank to something.
4. Also, may be a very high levels of biotin (vitamin b7) in the blood was protecting me from hypoxia. I take it because of my disease.
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