Posted by CalAbDiver on June 18, 2001 at 08:57:33:
In Reply to: Re: TDI question posted by Robert on June 18, 2001 at 07:42:05:
diving to 150 fsw on air is feasible BUT you only have about 2 to 3 mins NDL time at that depth, after which you need to go into deco.
deco on air is very inefficient, and you are much better off deco-ing with nitrox of some kind, like EAN40 starting at 80 feet.
if your instructor was so low on air, i am surprised he/she did not signal everyone to go up together, then start to buddy breath or air share he/she needed. that would have been safer than abandoning a group of student tech divers. sounds like he/she panicked to me.
its lucky that one or all of the students didnt nark and die.
you prolly should find someone else to tech you deep air diving and/or deco.
I THOUGHT TDI ELIMINATED THEIR DEEP AIR DIVES FROM THEIR TECH PROGRAM???