What the?? Air on or off???

[wazee-sports]

Here is the reality fellows...

The last diver that was pulled from the local lake had O psi showing on his computer.
When his air was turned off by the local dive team, it was noticed the it only took one half of a turn.
The valve was then turned all the way on... the computer then read over 1400 psi.

Just last year, again the local dive team was called into the local lake for two divers with an problem.
These two divers made a rapid assent to the surface while sharing air.
Story is that just after reaching a depth of 104' one of the divers felt like he was running out of air, noticed his psi dropping and signaled for his buddy. They made it to the surface and got a ride to local hopital and then released to go home. It was reported that the diver with problem had his tank open about one half of a turn.

I can only wonder how many other cases like these are out there.

Any extra added safety devises that can be added to our sport is a plus.