Uwe Sieg
UweS
Apologies for the mistake. The unit does use a type of EAC cartridge. I will edit my post.
Near Fatal Hypercapnia Incident due to Incorrect Equipment Assembly
- Thread starter GLOC
- Start date
Apologies for the mistake. The unit does use a type of EAC cartridge. I will edit my post.
matt
Well-Known Member
_always_ ?
GLOC
real name: Gareth Lock!
Ok, would one in 1:10^7 or 10^8 do? You would have very little control over what it would do if it decided to end the dive for you and you might not be able to dive it how you want to but I suppose not a certainty!
Regards
Michael Thornton
Rebreather Enthusiast
If only we had conned the government into paying for our PDFs we could have done better.
Iain of course you can get any color string you want.
Let's not get too far off topic. The thread has the potential to be very educational for a lot of people.
Sent from my iPhone using Tapatalk
Mr fish
Active Member
i had a quick look at the mv1 manual , just to see the part that was missed out , rather large bit to missout , looks to me like you stick both ends on the EAC,
stick it back in the bucket , and thats that ,
i know some have said my old ap turd has the same problems ie parts you may forget to put back ,
but with the ybod/old turd you need to test the free movment of the spacers and o ring on set up ,
so you need to miss a few steps to fook it up ,
also looks to me that you need to be fooking about with the bottom part of the mV1 scrubber unit , and that takes away the Importance of the top cap , and moves your focus , maybe
if find the ybod nice to work on , its a layer cake , im working my way out / bottom up , and also each step has a small test to make sure you have it right ,
Last edited:
Paul Evans
Member
Nasa spent millions developing a pen that works in space, Our Russian friends took a pencil............
A string, is that it, The first thing you did?
I guess that's the development budget for the HH blown.
"And for those wishing to have the custom option, we can supply a red coloured string."
A sort of "Redman" string can bus kind of snuff.Iain
Michael Thornton
Rebreather Enthusiast
lizardland
Active Member
Yeah but the guy with the sharpener defected.
divingabe
Member
He went to Sotheby's and auctioned it and got MILLIONS for it.
(ps from the pen manufacturers)
Gabe
A subtle element with your point is that the Poseidon, doesn't actually use an ExtendAir Cartridge (EAC). If it did, it probably wouldn't have had this issue!
Poseidon uses a Sofnodive 797 granular pre-packed scrubber http://www.molecularproducts.com/us/products/n1025p55n14/sofnodive-797/details
The Micropore EAC is a quite different beast and requires flow cones on the ends, to locate the EAC and direct the gas flow. Flow cones which are typically fixed into the ends of the scrubber caps and not removed when you change the scrubber. http://www.microporeinc.com/?id=tech
Mr fish
Active Member
Yes your right brad , i should know better , I just picked it up from a post in this thread , thanks for pointing it out ,
Last edited:
uwxplorer
rEvo carrier
Everyone praises the OC diver for bringing the RB diver back up as quick as possible. I am just wondering what would have happened in case of hypoxia. Or seizure due to hyperoxia. Not that I am saying that staying put would have been a good idea, but clearly a minimum needs to be explained to an OC buddy for a potential rescue to not end up in an unnecessary death (asphyxia and possibly drowning if the loop gets flooded in the first case; air embolism and similarly flooding and drowning in the second).
The diver was conscious and helping himself, which made the difference.
Not sure what should be told, but training agencies should realize that this is going to be getting a common situation for RB divers shortly after training (as the diver was).
The diver was conscious and helping himself, which made the difference.
Not sure what should be told, but training agencies should realize that this is going to be getting a common situation for RB divers shortly after training (as the diver was).
snarkcon5
New Member
I only have experience with a JJ-CCR, but it's pretty much impossible to assemble that thing incorrectly. Ultimately it comes down to individual responsibility, but any opportunity for assembly error that can be solved with engineering, should be, imo.
This story is a great reminder about how quickly things can go wrong in such a way that you can't save yourself. I was taught to do the pre-breathe as I was walking to the water or doing something other than just sitting there so a CO2 problem would more likely reveal itself before the dive. But a break-through could occur at any time, I guess, so I'm looking forward to reliable and accurate CO2 monitors someday, as someone else mentioned.
This story is a great reminder about how quickly things can go wrong in such a way that you can't save yourself. I was taught to do the pre-breathe as I was walking to the water or doing something other than just sitting there so a CO2 problem would more likely reveal itself before the dive. But a break-through could occur at any time, I guess, so I'm looking forward to reliable and accurate CO2 monitors someday, as someone else mentioned.
Johnnyh
Dude
That is why I personally like a temp stick - first in my sentinel and soon in a rEvo. It's a useful tool for verifying a properly installed and loaded canister. As Simon Mitchell's paper pointed out, divers may prebreathe on a unit with a missing canister and not find out this potentially deadly issue, but with a temp stick, you can see the exothermic reaction taking place (or just as importantly, not, in the case of a missing, empty, or otherwise messed up canister). It's not a catch all - but if you don't see a temp delta during prebreathe then you know something ain't right...