Posted by Bob3 on August 23, 2001 at 09:45:35:
In Reply to: it was called hydreliox...... posted by muckdiver on August 22, 2001 at 20:55:08:
Normal heliox starts getting thick past 1200', to the point that inhalation becomes increasingly more difficult.
Switching to hydrogen stretched the 1600' heliox barier to around 2000' with the hydreliox.
There is no good reason (other than the "entertainment" factor)to expose yourself & others to the explosive hazards of a hydrogen mix.
Using plain old heliox eliminates the narcotic factor of trimix.
If you're going that deep to need heliox, consider surface supply so you don't have to lug a half ton of bottles along with you.