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Re: Dry suit diving


Scuba Diving on the Great Escape Southern California Live-Aboard Dive Boat


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Posted by Chuck Tribolet on September 16, 2006 at 05:32:51:

In Reply to: Dry suit diving posted by Frank Farmer on September 15, 2006 at 22:47:38:

One consideration is: what's the diver's buoyancy change due to
gas consumption? A tech diver with doubles, stages, and a two and
a half hour run time is going have 10-15 pounds of buoyancy change
over the course of the dive. That's way too much to manage with
suit alone (IMHO). On the other hand, a rebreather diver may only
have one or two pounds of bouyancy change. That's manageable
with suit alone (IMHO). A recreational diver with a single is
somewhere in between with about five or six pounds of buoyancy
change. I choose to use both wing and suit. The gas in the wing
is used balance the gas in the tank, and so at the end of the dive
the wing is empty.

Task loading is a non-issue. When adjusting buoyancy you aren't
simultaneously fooling with the camera. On ascent, the wing
is empty and doesn't need to be managed. And adjusting buoyancy
becomes second nature.

Finally, the dual inflaction school isn't concerned with "what if
both the suit and the wing/BC fail"? We're concerned with
not having so much loose air in the suit that it all goes to our
feet.


Chuck



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