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Hi fellow divers,

I while ago i started a thread on scuba-l about what to do when
your computer for one reason or another fails in the middle of a dive.
(unlikely but .... Murphy likes diving also!)

The question was : can one continue the dive on multilevel tables ?
(if you have a depth gauge and a timer)

Of course the easy way out is to abort the dive , do safety stops
and wait on surface until offgassed to start again with a fresh computer or on
tables.

But suppose you are on a luxury dive safari tour and 3 more dives are scheduled
before going back on land again.

I summerize (try to) the feedback of the thread to some extent as follows :

	- In order to continue one has to rely heavily on memory 
	  (where was i at the time of failure) and since this
	  is not so reliable one should abort the dive and do
	  safety stops.

        - You cannot adequately and safely map a computer dive
	  profile to pressure groups on a table.

        - Some divers 'follow' their computers 
	  (do you plan a dive and dive the plan ?) :
          from computers to tables ... it should be the opposite
	  way !

I selected some options which seems safe to continue the dive.
Maybe you have something to add or comment about.

Here are the 'few' SAFE options besides bailing out :

- You plan your dives on a table (multilevel) or on a PC 
  and use your computer as backup or diveplan-check-device
  and having a timer and depth gauge you can safely
  continue the dive if you dive according your plan. 
  (you need to have the plan with you on a slate for instance)
  You can do other dives using the same table but if you want to check 
  your diveplan you need another computer and because a new computer
  starts with zero ongassing you should be completely offgassed.
  NEVER NEVER NEVER use someone elses computer !!!!!

- If you do not use tables , you can continue if you use
  a backup computer and you have that with you on any
  dive you make. Besides I think that if you dive EAN you
  should set both computers to the same mixture right ?
  (this is another risk factor to account for !)

Maybe there exists other SAFE ways .. I wonder.
Anyone out there ?

Meanwhile happy SAFE diving !

--
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  Xavier Merlin                             ####   ###########
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  Tel +32 (2) 422 7487 Fax +32 (2) 422 8106 E-mail u18218@kb*.be*
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