09/20/2008(Sat) No.1 - Casino Point[Catalina Island]





[Log]
Diver : Michael Clay
Dive Master :
Buddy : Nathalie Wutkee
D.Service :
Weather : Sunny
Temp. : 85 Fahrenheit
Ave.w.temp : 64 Fahrenheit
Min.w.temp : 57 Fahrenheit
Diving Suit : Dry Suit
Inner Wear : Polartec
Weight : 25 Lbs
Tank Material : Steel 77
Equipment :
S.I.Time : 14:02:00
Time In : 12:12:34
Time Out : 12:55:06
Dive Time : 00:42:35
Ave.Depth : 74 ft
Max.Depth : 120 ft
Safety Stop.Depth : ft
Safety Stop.Time : min
Tank Capacity : 77 Cu/Ft
Pres. In : 2400 PSI
Pres. Out. : 100 PSI
Air Consum. : 17.52 PSI
Visibility H. : 30 ft
Visibility V. : 30 ft
Access1 : Shore
Access2 : Ocean
Rating : ***
Dive Number : 310
Total Time : 262:29


[Memo]
This was Nathalie's first deep dive (for her Advanced certification). We went straight out from the stairs to about 80 ft. I asked Nathalie if she was OK and she was hesitant so we waited until she was comfortable to procede. We continued like this, checking Nathalie's comfort level every 10 ft of depth, until we hit about 120 ft. At 120 we played rock-paper-sissors and I asked her a few simple math questions. Later, she said that the problems were easy but simple questions were hard. Just wanted to show her how nitrogen narcosis can affect you at depth. :-) After we were done playing our games, I checked Nathalie's air pressure. She was at about 1200 PSI, so I signaled that we were turning around and heading back. I tried to hurry us along. Nathalie kept slowing down to take pictures and observe nature. We finally got back to about 38 ft of water. I checked Nathalie's air pressure again and it looked like it said 150 but the display kept changing and I was unfamiliar with her computer so I wasn't sure. I signalled to her and we moved up to a rock that put us in about 20 ft of water (just in case). I looked at her SPG again and this time it said 121. Knowing that we were just in 120 ft of water, I was still unsure if I was reading the correct information. But, just in case, we were only sitting in 20 ft of water and I unleashed my octopus. Nathalie gave me a funny look then took her last breath. I saw the surprise on her face and quickly handed her my octo. She took a couple of quick breaths and started to swim for the surface. Realizing that my air was depleted with two divers on it, I grabbed her and proceded to perform a safe emergency ascent. When we got to the surface, I told her to fill her BC. She pushed the button and nothing happened. I grabbed her inflator and manually inflated while holding her up on the surface. Then I inflated my BC. I told her that we would hang out, relaxing on the surface for a while since we just did an emergency ascent from a deep dive. I'm still not sure how she went through over 1/3 of her air in the last 10 min of the dive, but it was a good learning experience for her. :-)



[Graph]
Graph