Bottom time on LP vs HP

[David P]

because we're already off course...

just like a pound is a pound regardless of composition.

not true! There are 16 ounces per pound, unless you're weighing gold, then there is only 14!

 

[Courtneyf82]

Actually I did take off 4lbs, but an extra 20min from just that?

 

[Packhorse]

This thread demonstrates to me why the metric systm is so much easyer to use and much better suited to diving.

Which tank will last longer?
What size it the tank ? 15 litres
What is the pressure of the tank? 180 bar
15x 180 is 2700 litres
compared to tank B of 12 litres and 230 bar
12x 230= 2760 litres