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Old 06-13-2018, 04:20 PM   #1
grey2112
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Looking to buy used Steel 100+ HP tanks

Anyone in the area have any for sale let me know - looking to upgrade to HP tanks that are at least 100s

email or PM me - ericfield@hotmail.com
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Old 06-13-2018, 05:26 PM   #2
Spear One
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Re: Looking to buy used Steel 100+ HP tanks

Call me 727-743-7686
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Old 06-13-2018, 09:08 PM   #3
Butchbal
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Re: Looking to buy used Steel 100+ HP tanks

Quote:
Originally Posted by grey2112 View Post
Anyone in the area have any for sale let me know - looking to upgrade to HP tanks that are at least 100s

email or PM me - ericfield@hotmail.com
Eric, I went to HP 100s last year. Love them, longer bottom time and you can ditch 7 lbs of weight.
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Old 06-14-2018, 05:24 AM   #4
grey2112
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Re: Looking to buy used Steel 100+ HP tanks

I already use neutrally buoyant tanks (about 6 extra pounds) - so I wouldn't be needing to adjust at all to the weight of a 100, which is nice.

Now the question is do I go 100 HP or get 112 LPs ? I'm getting different opinions on both.
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Old 06-14-2018, 06:26 AM   #5
CuzzA
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Re: Looking to buy used Steel 100+ HP tanks

So, I am a fan of the LP112 and here is why.

Faber states they can be cycled at a minimum of 10,000 fills to 4,000 psi. Overfilling low pressure tanks is an everyday common practice in North Florida cave country and at most tech/cave diving shops. Never has a tank failed.

It's my understanding from a metallurgy perspective this is safe and the issue is more about the DOT regs and not the tank itself. My shop is geared more toward technical/cave diving so they will give me a "cave" fill on my tanks. If I were doing a pinnacle dive and needed the gas they will give me up to a 4k fill, 170 cu ft. I normally get fills to 3500 psi. If my tanks are filled to 3500 psi that gives me ~150 cubic feet of gas. Nearly two aluminum 80's and of course 50 more cubes than a HP100. The downside to the 112's is they are slightly larger in diameter, 8 inches instead of 7.25. The 112's are two inches taller and weigh 6 lbs. more. Buoyancy wise, they have nearly the same characteristics. Negative 8 full, negative 1 empty. Price wise they are about the same.

So, at the end of the day there are many shops in Florida and around the Bay area that will give you good fills. Perhaps one day one of us buys a compressor or a group of us buys one and we fill our own tanks. Owning a LP112 vs. a HP100 gives you more utility. You really can't overfill a HP100 for any kind of benefit. If you have a really good SAC rate you could potentially bring just one LP112 for a two dive trip. If you are doing a Middle Grounds trip where tanks are at a premium, you can squeak out another dive from a LP112 vs a HP100. Basically, you have a lot more options with the LP 112 vs. a HP100.

I don't think there is a wrong answer here, just personally preference. Some people won't overfill a tank. If you don't have any shops to get a good fill it may not be worth the extra bulk in the tank. One thing is for sure, steel is the way to go. Those tanks will likely outlive us all.

Eric, I have 8x LP112's and will be happy to bring a spare on a trip so you can dive it and see how it trims out and see what kind of dive times you'll get.

Last edited by CuzzA; 06-14-2018 at 06:39 AM.
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Old 06-14-2018, 07:31 PM   #6
Diverjimc
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Re: Looking to buy used Steel 100+ HP tanks

I have a steel HP 130 new hydro new VIP $250.00
It would be good for deep diving or cave diving.
Anyone interested 727-599-1524
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Old Today, 02:59 PM   #7
Dawg
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Re: Looking to buy used Steel 100+ HP tanks

I only use lp108, just my sweet spot.
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