gianaameri
Contributor
- Messages
- 793
- Reaction score
- 162
Now I'm really confused. Did she have a CO2 hit because she built the unit improperly, or a flood? Or did the flood and possible subsequent damage to the the O2 cells come after the incident, when the loop was out of her mouth? As for the lungs being reversed, even though the fittings are the same for O2 and diluent addition, the hose routing is completely different--how could anyone familiar with the unit possibly miss that?
My understanding is that gas was not flowing through the loop and the scrubber.
For the uninitiated, this means putting a plastic bag on your head and breathing from it (while O2 is being added by a hose with CO2 not being removed).
On descent the partial pressure of CO2 increases, and bang she was dead in 3 minutes (14 meters depth only).
The unit was incorrectly assembled and dangerously so.
This is easily preventable by proper design.
My understanding, happy to be proven wrong.