It occurs to me that a review of emergency procedures in light of this accident, with fatal results, is in order. What I observe is that the diver was found in about 40 feet of water on the north end of the lake. This means that he was negatively buoyant when the incident happened, and did not drop weights. If you drop weights in Clear Lake, they are gone into maybe ten feet of mud and silt. But, the idea is to become positively buoyant when an emergency hits.
The one other fatal accident in Clear Lake involved a diver using an At-Pak who apparently did not connect the low pressure inflator hose, and jumped in from a boat without his mouthpiece in his mouth. This was in the late 1970s or early 1980s. He was very negatively buoyant, and jumped in where the lake was quite deep (over 50 feet). He went to the bottom, was not able to get air, and apparently drowned. But again, he was negatively buoyant.
One technique we used years ago when free diving, and sometimes in scuba diving too, was if we were in an emergency situation, we took off our weight belt and held it in one hand. If we then blacked out (shallow water blackout when breath-hold diving), because we were out we would loose grip on the weight belt, and drop it. I'm not sure this is known or talked about anymore, but thought I would explain it again as a possible emergency measure. It works when the diver is unconscious, unlike trying to inflate a BC.
SeaRat
The one other fatal accident in Clear Lake involved a diver using an At-Pak who apparently did not connect the low pressure inflator hose, and jumped in from a boat without his mouthpiece in his mouth. This was in the late 1970s or early 1980s. He was very negatively buoyant, and jumped in where the lake was quite deep (over 50 feet). He went to the bottom, was not able to get air, and apparently drowned. But again, he was negatively buoyant.
One technique we used years ago when free diving, and sometimes in scuba diving too, was if we were in an emergency situation, we took off our weight belt and held it in one hand. If we then blacked out (shallow water blackout when breath-hold diving), because we were out we would loose grip on the weight belt, and drop it. I'm not sure this is known or talked about anymore, but thought I would explain it again as a possible emergency measure. It works when the diver is unconscious, unlike trying to inflate a BC.
SeaRat