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Tanks You're welcome... er.. no. Scuba Tanks - aluminum, steel, big, small, pony bottles, doubles, etc.

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Old 08-02-2008, 04:48 PM   #1 (permalink)
Cheetah223
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Al80, HP80, or other?

I'm diving a 30# bp/w with singles, and have yet to buy my own tank/s...From looking at buoyancy characteristics as well as dry weight, an HP steel 80 seems better than an al80 in every way, shape and form. Would anyone suggest against using an HP80, or suggest another volume tank for pretty typical openwater shore dives? I'm not doing anything technical yet, but it may come down the line.
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Old 08-02-2008, 05:02 PM   #2 (permalink)
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Hp100

I like an HP100 for shore dives where hiking or a good walk is involved.

The HP100 is similar in size and weight to an Al80.

HP100 99cf, 24" high, 33lb empty, -2.5lb buoyancy empty.

Al80 77cf, 26" high, 32lb empty, +1.5lb buoyancy empty.

And can remove about 4lb from belt due to buoyancy empty compared to Al80.
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Old 08-02-2008, 06:15 PM   #3 (permalink)
mitsuguy
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I agree... I mostly dive HP steel 80's because I can rent them from the LDS... however, if I was going to buy, I would be getting steel 100's...

if you don't want/need the extra air though, the only downside to steel tanks is price (compared to AL tanks)
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Old 08-02-2008, 07:37 PM   #4 (permalink)
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I'd say a steel cylinder of any size is a good thing, the HP80 really depends on whether or not you can get good fills all the time. If you can it's a good deal but I still prefer my HP100's.
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Old 08-02-2008, 09:59 PM   #5 (permalink)
Cheetah223
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Anyone have a link handy that I can compare the buoyancy and dry weight characteristics of HP80's and HP100's? I haven't heard much about HP80's, that's why I asked specifically, and consensus seems to suggest 100's...
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Old 08-02-2008, 10:06 PM   #6 (permalink)
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Originally Posted by Cheetah223 View Post
Anyone have a link handy that I can compare the buoyancy and dry weight characteristics of HP80's and HP100's? I haven't heard much about HP80's, that's why I asked specifically, and consensus seems to suggest 100's...

Google XSSCUBA then check tank specifications. There are other better links by google SCUBA Tank Specification.
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Old 08-02-2008, 10:17 PM   #7 (permalink)
ScaredSilly
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If you find diving an AL80 to be fine then I would also vote for HP100 over a HP 80. They are short cylinders.
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Old 08-02-2008, 10:38 PM   #8 (permalink)
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Anyone have a link handy that I can compare the buoyancy and dry weight characteristics of HP80's and HP100's? I haven't heard much about HP80's, that's why I asked specifically, and consensus seems to suggest 100's...
TECHDIVINGLIMITED.COM

Click on link for cylinders then click link for cylinder specifications
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Composed of elite divers with Macho mentalities, back when men were men, and FEAR was a lispy companion of the common Man. It was a time before insurance liabilities, lawsuits or beauracratic regulation of the "sport".
Guerrilla divers didn't need "Buoyancy Compensator Vests". In fact, "Anyone who needs a BC deserves to drown" was a popular adage.
Exploration and the Hunt came first, excitement and fun followed. Safety was the stepchild of fitness, good reflexes and a cool head.
This was a time of great Adventure.
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Old 08-02-2008, 10:59 PM   #9 (permalink)
Cheetah223
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Thanks for the replies, looks like I'm leaning more toward HP100's now, as well. Now the next issue: how do you make your partner's Al80 last long enough to make the upgrade worth it? haha
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Old 08-02-2008, 11:19 PM   #10 (permalink)
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Be warned. If you have a larger tank than your dive buddy, you instantly become the official dive flag holder (where applicable) !!!
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