So do any of you get your 72's overfilled to 2600psi effectively making them the same as al80's? (77cf that is)
steel 72's vs AL80
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What kidspot said ~ I always overstuff my 72's so they hold more than an AL80 (which at 3000psi do not contain 80cf of gas 
). As a drysuit diver, I like the buoyancy characterists of the S72 much better than an AL80.
). As a drysuit diver, I like the buoyancy characterists of the S72 much better than an AL80.
ScubaSarus
Guest
72's are better. Lower pressure = easier and better fills. Better bouyancy. May last longer and yes you can get a + HYDRO to allow overfilling time after time. More rugged for those diving off rocks. May have internal rust problems if abused when filling or water is allowed to enter.
OP
all4scuba05
Contributor
thankyou...looking for them now
Sideband
Guest
kidspot:
"Overfilling" to 2640 only brings them up to 72. Just like my LP steel 95 is only 95cft if it is filled to 2640. They give the volume when filled to the plus rating so if you lose the + you no longer get the full rating of the tank. An LP 72 that has lost the + rating is a 65.
Joe
ahh - I thought they were 65cf at 2200 psi ... so it's 77cf at 2850 ...
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