Pat413
Member
My condoleances first! It nearly happen to me one day, for some obscure reasons the O2 bottle was closed and I realized it when checking controller the PPO2 was down to 0.12. That's the day I decided to get a unit with several alarms including vibration and HUD. Believe me I ALWAYS make the same pre dive checks since years and every descending check the controller. Except this day where I got very distracted and stressed because of heaps of people in the water entering zone, which I wanted to escape quickly, scootered at the surface while into the loop and bottle closed. You see this can happen to everyone and I was lucky that no sun dazzled the Shearwater(s) at this crucial moment.