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M

MessyNonsense

Student
May 29, 2026
102
Tonight i tried CTBing using CO and failed. My meter just read an error code when i turned it on after getting into the room with the charcoal, which i burned until white and glowing like the guides said. I also think i may have waited too long and not enough of the charcoal was still glowing when i brought it inside. And maybe my 14 inch grill couldn't fit enough charcoal, i didn't weigh it but there was a lot, lump charcoal btw. I can post a picture of how much i used if anyone wants, and maybe someone can tell me if it was enough.

Nobody on here talks about the little issue of how the hell you're supposed to seal the gaps around the door AFTER getting in, which is like, duh? You can't exactly seal the door before getting in the room, can you? So I had to think of an idea myself, which was to breath through a tube stuck underneath the door gap while i taped up the rest of the door frame after getting inside. I wanted to wait until it read 10,000 ppm and then i'd take a few breaths and be out in a minute. But like i said i just got an error message.

Now i'm airing out the closet i was using, opened all the windows and stuff because i don't want to get braindamaged unless i'm actually about to CTB. My meter is working now (??) and it took a while but it just reached 0 as i'm typing this. The highest it read after i opened the closet door was 140-something in the hallway, so there probably wasn't nearly enough CO being produced in the closet. Another reason i think that is i took a few test breaths while still sealed up in there, and i didn't notice much of anything other than a smell and of course the heat. Not even some lightheadedness.

I read the meter's manual, and the troubleshooting section for the particular error message i got said it might need to be "purged" but the manual doesn't say how to do that. Tpi 707 btw. It's working now, so theoretically i guess i could turn it on and put it in the closet, then bring in the charcoal, then seal up the door, then see if the meter stays on and shows me a reading? That's probably what i'll do.

I smell like smoke and can't shower. Fuck.
 
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D

DeathSweetDeath

Enlightened
Nov 12, 2025
1,949
Damn. Sorry to hear. From what I've read it can be harder than it may seem.
 
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M

MessyNonsense

Student
May 29, 2026
102
Damn. Sorry to hear. From what I've read it can be harder than it may seem.
Thanks. I just thought i had read everyone else's research and planned it out right. I guess not
 
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S

Salkak

Student
Dec 9, 2021
197
Man I need to figure this out too. Can you link the guide co guide please?
 
M

MessyNonsense

Student
May 29, 2026
102
Man I need to figure this out too. Can you link the guide co guide please?
I scoured this whole site for any and all posts mentioning CO, people's plans, their attempts, discussions about it, etc. In addition to that and the CO megathread, this particular post was really informative:
 
Last edited:
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S

Salkak

Student
Dec 9, 2021
197
This

I scoured this whole site for any and all posts mentioning CO, people's plans, their attempts, discussions about it, etc. In addition to that and the CO megathread, this particular post was really informative:
Thanks a lot. I wanna go by co too. It's fairly peaceful if done right
 
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Ben 111

Ben 111

Specialist
Apr 29, 2026
312
Just use a strong duck tape to cover the gaps
 
M

MessyNonsense

Student
May 29, 2026
102
Just use a strong duck tape to cover the gaps
That's exactly what i did. But think about it: you bring the charcoal into your space. Then you gotta spend several minutes sealing the door with the charcoal in there producing CO gas. Enough to reach 10,000 ppm will presumably make you pass out pretty quickly even before the gaps are sealed. But because you passed out before you sealed the gaps, the CO leaks and doesn't reach high enough levels to kill you. One way ticket to a massive headache at best and a hospital trip at worst.
 
Ben 111

Ben 111

Specialist
Apr 29, 2026
312
I suggest sealing every gap in the enclosure before entering with the smouldering coals inside
I also tried co method and failed,, i guess I chickened out. During my attempt I reached a point where I heard some hissing noises in my head and was about to pass out
 
M

MessyNonsense

Student
May 29, 2026
102
I suggest sealing every gap in the enclosure before entering with the smouldering coals inside
I also tried co method and failed,, i guess I chickened out. During my attempt I reached a point where I heard some hissing noises in my head and was about to pass out
My guy, explain how it is physically possible to seal the entrance to a room and then proceed to enter said room?
 
kurgan

kurgan

Wanderer
Jun 6, 2025
376
Tonight i tried CTBing using CO and failed. My meter just read an error code when i turned it on after getting into the room with the charcoal, which i burned until white and glowing like the guides said. I also think i may have waited too long and not enough of the charcoal was still glowing when i brought it inside. And maybe my 14 inch grill couldn't fit enough charcoal, i didn't weigh it but there was a lot, lump charcoal btw. I can post a picture of how much i used if anyone wants, and maybe someone can tell me if it was enough.

Nobody on here talks about the little issue of how the hell you're supposed to seal the gaps around the door AFTER getting in, which is like, duh? You can't exactly seal the door before getting in the room, can you? So I had to think of an idea myself, which was to breath through a tube stuck underneath the door gap while i taped up the rest of the door frame after getting inside. I wanted to wait until it read 10,000 ppm and then i'd take a few breaths and be out in a minute. But like i said i just got an error message.

Now i'm airing out the closet i was using, opened all the windows and stuff because i don't want to get braindamaged unless i'm actually about to CTB. My meter is working now (??) and it took a while but it just reached 0 as i'm typing this. The highest it read after i opened the closet door was 140-something in the hallway, so there probably wasn't nearly enough CO being produced in the closet. Another reason i think that is i took a few test breaths while still sealed up in there, and i didn't notice much of anything other than a smell and of course the heat. Not even some lightheadedness.

I read the meter's manual, and the troubleshooting section for the particular error message i got said it might need to be "purged" but the manual doesn't say how to do that. Tpi 707 btw. It's working now, so theoretically i guess i could turn it on and put it in the closet, then bring in the charcoal, then seal up the door, then see if the meter stays on and shows me a reading? That's probably what i'll do.

I smell like smoke and can't shower. Fuck.
What size was the room?
 
B

brokennsad

Student
Jul 17, 2026
120
Didn't work 4 me either. How the f can we die by this method? Feeling more n more desperate everyday.
Also read in news report when couple brought coals inside thier tent, only woman died not the guy. So there's that.
 
M

MessyNonsense

Student
May 29, 2026
102
Do you mean like the door hinges or
Well yeah, the entire perimeter of the door. The gap underneath especially, but all of it, if you want an actual airtight seal. It won't be openable after putting tape around the entire doorframe.
What size was the room?
5.97 cubic meters
 
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Ben 111

Ben 111

Specialist
Apr 29, 2026
312
During my attempt I used some bed sheets and towels to cover the gaps on the door frame
 
M

MessyNonsense

Student
May 29, 2026
102
Also read in news report when couple brought coals inside thier tent, only woman died not the guy. So there's that.
I mean it's not like guys are immune to CO poisoning, maybe women have less resistance but i can't imagine how gender would make a difference, especially at the super high concentrations i'm aiming for
 
M

MessyNonsense

Student
May 29, 2026
102
During my attempt I used some bed sheets and towels to cover the gaps on the door frame
That'll still allow some of the CO to escape, i live with other people so i can't do that
 
B

brokennsad

Student
Jul 17, 2026
120
I mean it's not like guys are immune to CO poisoning, maybe women have less resistance but i can't imagine how gender would make a difference, especially at the super high concentrations i'm aiming for
Im not suggesting that,im just relating the case i read in news report.
 
B

brokennsad

Student
Jul 17, 2026
120
Yea getting it there n keeping it there obviously its tricky
Several people shot down my argon gas idea. I think i had my last opportunity last night. I should have executed.
Everyday is fing ground hog day
 
M

MessyNonsense

Student
May 29, 2026
102
Yea getting it there n keeping it there obviously its tricky
Don't have to keep it there that long. Breathing through a tube while i wait for the CO to build up until the sensor reads 10,000. After that i just take the tube out my mouth and if my research is correct i should be passed out in a couple breaths and dead within a few minutes.
Only problem is the paradox of door sealing, and getting the charcoal right so it actually reaches 10,000
Several people shot down my argon gas idea. I think i had my last opportunity last night. I should have executed.
Is argon gas easy to get? What were their reasons for shooting it down
 
DeadManLiving

DeadManLiving

Ticketholder
Sep 9, 2022
646
It's in the first post, TPI 707
That's a good sensor.

Also what's the need to exit/enter the confined space again after ignition? Instead of staying in place, sealing the doorway (from the inside), igniting the coals and remaining in situ

What led up to this tragic outcome if you don't mind sharing?
 

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