Hi Cmgmg,
>>On a more serious note, Yeoh CW's dive profile would be even difficult to plan using NAUI's RGBM Deco Tables. His first dive to 44M is in excess of "recreation dives". In the NAUI RGBM book the last table only goes to 39MSW. He didn't mention how long the first dive took (not even for the second dive for that matter). >>
I stayed only about 1 min. at 44 m. and the bottom time of the first dive was 42 min. including 5 min. safety stop at 5 m. The max. depth for the second dive, after a surface interval of 2 hr. 13 min. was 35 m., total bottom time 67 min. which included 10 min at 10 m. to 6 m. and finally 12 min. at the safety stop which moved upwards from 5 m. to 3 m.
>> All of this issues are moot, the biggest issue here is that Yeoh CW ran out of air. The resort rightfully took away his scuba previlege because of his air management not computer lockup. Most vacation dive boats have policy on running out of gas not computer lockup. >>
I am not familiar with NAUI RGBM as I am PADI trained. I didn't find the PADI Dive Planner useful for bounce and multilevel types of diving and that was why I bought a dive computer. At this resort our group of 10 divers were accompanied by a divemaster though we chose our own partners. None of the dives were planned using RGBM tables, we just depended on our dive computers. The dives were planned by the divemaster and we were given a briefing. The first dive of the day was down to 40 m. for less than 2 min. These are wall dives and we were hoping for sightings of schools of hammerheads!
At the time when I realised that my deco time exceeded my air-time I had 78 bar left at 15 m. depth. I chose to try to complete my desaturation as much as I could.
I could choose to reduce my decompression and showed my divemaster that I still have 35 bars left by setting my computer in gauge mode. That way I would not have incurred a lost of 3 dives. I was the last one up the boat, the other divers were either impatient, anxious or irritated, and the divemaster knew that I was doing a long decompression. When he enquired whether I had completed the desaturation I showed him my dive computer. It never occurred to me to hide the fact. I still believed that my choice to try to complete desaturation is the better one.
However, I now realized that I did not manage my gas consumption well - I should never allowed a situation where decompression requirement exceeded remaining air.
This was a costly lesson and hopefully my last.
Live to learn.
Thank you Cmgmg, Cerich, Markdone, Charlie and Peter for helping me out.
PS. to Cmgmg: We live in a hot, humid tropical country where we are used to above 30 deg. C. Any condition less than 29 deg. C. would be considered chilly. A few of us (including me) had runny noses diving at 27 deg. C for 4 consecutive days. Those of us who have "extra" layers of fat did better.
