Aluminum 80 or steel 100

[captbillncostarica]

i used my 10 steels mainly for photography and teaching my classes.

So if you want to stay longer use a steel,,but remember your buddy may have only a 80, so stick with him on coming up,,unless it is a girl then you will match up as she will use less air.

one thing good in having 100 cu steel in teaching is you have a few more pounds for someone who might need it,,and in running a dive boat there always seems to be someone running out .

THE WETTER THE BETTER !

 

[elmer fudd]

So that you're comparing apples to apples, try pitting an AL80 against an HP80. You'll find that the latter is 6" shorter, 3 lbs lighter, 6 lbs more negative and holds 3 cf more air. In other words, you'll be carrying 9 lbs less, your tank will be about 25% smaller and you'll still have more air.

For an AL80 vs. HP100 you'll be carrying 2 lbs less weight, your tank will be 2" shorter and you'll have 23 cf more air with the HP100.

The only real advantage aluminum has is price and potential as a stage/decompression bottle. Since full aluminum tanks are only about 2 pounds negative, you can sling them easier without throwing off your trim. That's why most people favor aluminum ponies.