lermontov
Contributor
without knowing their GF which could have been on the conservative side, missing a 2min stop would be a minimal risk in lieu of saving someone's life- a risk I would take in most circumstances -however if i saw someone go to the surface with full consciousness and the last thing i saw was them reaching for a 50% and knowing they were a diver instructor and presumably a certain degree of competency id let them take care of themselves - if it was some one who I didnt feel was competent id probably ascend and take the risk."The third and final event during the dive occurred at 77 minutes into the dive, when Ms Gauci ascended to the surface rapidly for the second time within the same dive. According to Mr. [Diving buddy], he looked up, saw her reach for the regulator of her Nitrox 50% deco cylinder, and never established eye contact or saw her again. He cites having a deco obligation and being light, hence the reason for not following her. This is disproven by his decompression computer – a 2 minute deco obligation at 5 minutes is never an impediment to seek a lost diving buddy."
I don't understand "a 2 minute deco obligation at 5 minutes", but it seems to me they are requiring one break a deco obligation to seek a lost buddy. It could be just a bad translation, but it seems a poor spot to have one.
bearing on mind he was on a ccr so depending on his set point his 2 min of deco could have been 5-10 min for her - maybe more reason to have ascended to assist - hard to determine without more information
In retrospect if her cylinders were empty and they discovered a faulty LP hose then id guess she had been constantly venting her dry suit to stay neutral -maybe thats part of the answer