-=> Quoting Anthony Bowling to All <=-
 AB> I was just curious about how long the air lasts in a #80 tank...I
 AB> know it  depends on how deep you go..but can anyone give me some sort
 AB> of an idea if the  dive stays around the 30' range...
Depends on a lot of different factors, but if you are a diver of
average experience and skill, and the dive is relaxed and not
strenuous, you can make an 80cf tank last about 50-60 minutes
at 25 to 30 ft. (in warm water) a little less in cold water.
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