Thanks for the tip on the luxfers. this might explain why no one 
believes what i tell them about my particular set and when the tanks go 
positive. I bought one of barrys 18w lights today and saw the new 
breather, real slick stuff.

Marv

Trey wrote:

> I don't think this was a ball bust. Most people, Paul included, know I know
> exactly what I am talking about. In any event, the advice I gave Paul makes
> this all a moot point. Check your own stuff to be sure. With stages, you
> have to be even more careful since they do have a good deal of latitude in
> the alloy they use, so you could get anything from a Walter Kidde , which is
> neutral empty like a Faber steel, to a Catalina brick, a Catalina floater,
> or several variations of Luxfer buoyancies, although Luxfer is the most
> consistent.
> 
> The other piece of advice that I can give you with no reservations: if you
> hear it in an dive shop or from the "dive industry", ignore it. The number
> of exceptions to this rule are statistically insignificant.
> 
> 
> 
> -----Original Message-----
> From: Marv [mailto:ajmarve@op*.ne*]
> Sent: Saturday, March 24, 2001 11:35 PM
> To: Trey
> Cc: Paul Braunbehrens; Ian Puleston; techdiver@aquanaut.com
> Subject: Re: OMS vs PST tank specs
> 
> 
> You know if you guys ever stopped busting Georges balls about the
> internet tank chart numbers that dont match reality, you might manage to
> get into the water where youd discover that not only is he right about
> the numbers, he is also right about the aluminum tanks being the best
> for ocean.
> 
> Marv
> 
> 
> Trey wrote:
> 
>> Obviously not correct. I have four sets from 1971 to 1998. All -9 for a
> 
> set
> 
>> of doubles, and   I checked each and every one of them. Paul, we can not
>> chase bullshit from web sites. Either believe it or don't, but unless
> 
> these
> 
>> morons have changed the tank, and that means a whole series of DOT
> 
> approvals
> 
>> for nada, then they fucked up on the web site, or more likely, given that
>> they are involved in the dive industry, they have no freaking clue what
> 
> the
> 
>> tanks do, and of course there is the slim chance you got it wrong. 121
> 
> PST's
> 
>> have exactly the same buoyancy characteristics as the 104's, have them ,
>> too, 1998 vintage.
>> 
>> -----Original Message-----
>> From: Paul Braunbehrens [mailto:Bakalite@ba*.co*]
>> Sent: Saturday, March 24, 2001 1:03 PM
>> To: Trey; Ian Puleston; techdiver@aquanaut.com
>> Subject: RE: OMS vs PST tank specs
>> 
>> 
>> Trey wrote:
>> 
>>> For dry suit diving anywhere, the PST offers a better buoyancy fit as a
>> 
>> pair
>> 
>>> are -9 in fresh vs neutral for the Faber. To offset a proper shell suit
>> 
>> with
>> 
>>> insulation takes between 20 and 26 pounds, and that is achieved by the
>>> tanks, the plate, the light, and the regs, leaving the diver neutral at
>> 
> all
> 
>>> depths with little or no gas, and negative by the amount of the gas when
>>> full, plus or minus a little depending on the insulation and the diver,
>> 
>> with
>> 
>>> the light being droppable in an emergency to get up.
>> 
>> 
>> 
>> Now I'm completely confused!  The pst site has these figures:
>> LP-104	104 CU.FT.	8.00	26.19	45 LBS	-0.7 LBS
>> 
>> which would make a set of doubles only 1.5 pounds negative!
>> 
>> Are we talking about the same tank?
>> --
>> Paul B.
>> 
>> --
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>> 
> 
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