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On Sun, 30 Nov 1997 22:58:01 +0000, you wrote:

>In message <347f2ea9.434317890@el*.co*>, John Dunk
><screwloose@el*.co*> writes
>
>snip.....
>
>>    For most of the dives I'll be doing in the forseeable future, 30'
>>is probably the deepest deco stop I'll experience;In the past, I've
>>dove air for these dives, and 100% O2 for the 10 & 20 stops with air
>>breaks.What should I be using in your opinion for these types of
>>decos?I'm a little concerned about the high ppo2 at 20 feet (1.7) even
>>though it is at rest, and usually not more than 15 minutes.
>>Thanks
>
>John
>
>       You need to stick some deep intermediate stops in!
>
>This will 'shape' the deco better - the curve is the important thing.
>
>
>Regards
>
>=20
>Chris Hellas         e-mail - chris@de*.de*.co*.uk*

I've heard some about this, Chris..How do I calculate where/how long
the deep stops should be, and do i need an O2 enriched mix or plain
air (my back gas)? Im guessing the type of diving I'll be doing
initially is in the 110'-50 to 70 mins range or else shallower-60-80'
for 100+ minutes.Any suggestions for reading material, plus where to
get it?



   John Dunk                                        o
   Tallahassee,Fl                                    o
   screwloose@el*.co*                      ____o_____
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