Search and recovery in silt?

[DetectorGuy]

I'm glad you got it back. My theory is just a guess... I think the mystery of the missing dive gear has to do with Pascal's law and Archemedies Principal. My opinion is that the day you watched it sink to the bottom, your kit would have been slightly positively buoyant if it would have been a low barometric pressure... but if you look back at a weather almanac for that day, I will bet a lunch that the barometric pressure was high that day. This would make a normally positively buoyant kit negative. A day or two later the barometer dropped and your kit became positive, corked to the surface, and the wind took it to the West shore. Couple this together with the lake turning over and it is entirely possible. Here is a link to some information about the Cartesian Diver: