<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_1_1450559174045_3761">Well I am officially going with natural gas tanks for buoyancy. I just bought 18 tanks in Salt Lake City, 7 of the tanks are the type that are carbon fibre and light. 4 of the tanks are new. I got such a deal, the auction was unreserved or buy it now for 11,000 US I made a bid and nobody bid against me so I got them for 99 cents :-) the four new tanks are worth 10K alone :-) :-) Now it is a 13 hr drive to go get them. </div><div id="yui_3_16_0_1_1450559174045_3761" dir="ltr">I intend on adding one tank more than it needs and compensating with extra weight. This way I can afford to loose one tanks to failure and still surface by dropping the chassis. The occupant sphere will separate like the DW's and Alvin. </div><div id="yui_3_16_0_1_1450559174045_3761" dir="ltr">Hank</div></div></body></html>