Air Pumps - What's Wrong With That Jet Over There?

Divers would unbolt the shooter valve, bring it up to the surface. And then half an hour later it would stick open again and do this horrible sputtering thing. We were just mystified, and we're getting uncomfortably close to opening. So i reached out, met the head of the fluid mechanics department at a cawtack,. He did a computer m very sophisticated, ar recently sophisticated, physics model of what was happening. It was that air was dropping to minus 50 degrees. The 80 degree water woudh hit that ice ball, they were long since melted. There was no evidence when they got to thesurface.