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<p>[QUOTE=&quot;RickieB, post: 362537, member: 2486&quot;]Darryl....LOL...</p><p>I know you Submariner&#039;s are used to great depth&#039;s...that steel hull can withstand the pressure that our bodies can&#039;t. Ten (10 years as a Deep Sea Diver in the Gulf of Mexico Oil Field&#039;s) when I was younger!</p><p><br /></p><p>256&#039; was the deepest with 91% He and 9% O2 (ppO2 at depth) switch over at 190 to heliOx and then air at 60&#039; until we got up to the can! Usually 5-6 hr&#039;s can time to decompress (Surface Decompression using O2).</p><p><br /></p><p>Many many hours in the water....but I am sure not as&nbsp; may as your day&#039;s in the Sub Corps!</p><p><br /></p><p>Right on 656!!!</p><p><br /></p><p><br /></p><p>RickieB[/QUOTE]</p><p><br /></p>

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