Re: [PSUBS-MAILIST] propane tanks revisited

["Brian Cox" <ojaibees@ojai.net>]

Pierre,  Yes I would have to cut the tank to put the reinforcement rings in,  but that is no big deal.  Also I would not need it painted so that might reduce the cost more.  I checked today on the thickness, one was .233"   another was  .255"

Brian 

----- Original Message ----- 
From: "Pierre Poulin" <pipo305@hotmail.com>
To: <personal_submersibles@psubs.org>
Sent: Friday, April 30, 2004 7:55 AM
Subject: RE: [PSUBS-MAILIST] propane tanks revisited


> Will you have to cut the tank to put reinforcement rings inside anyway?
> 
> Pierre
> 
> 
> 
> >From: "Brian Cox" <ojaibees@ojai.net>
> >Reply-To: personal_submersibles@psubs.org
> >To: <Personal_Submersibles@psubs.org>
> >Subject: [PSUBS-MAILIST] propane tanks revisited
> >Date: Fri, 30 Apr 2004 07:30:00 -0700
> >
> >Propane Tank investigation:
> >
> >I was explaning my design to my diving friend and he mentioned that
> >since my pressure hull is around 28" in diameter that I might consider a
> >propane tank.  I have always discounted the propane tank idea because I
> >felt having to deoderize it wouldn't be worth the effort, but then we
> >discussed buying a brand new one -never been used - from the factory.
> >I didn't think that would make any difference whether you were buyng a
> >new one from the factory or having one rolled from a fabrication
> >lant  -  but  -  he pointed out that since the propane tanks are mass
> >produced that they are cheaper !  So I called a propane company that I
> >know and sure enough they are a lot cheaper .  For a 250 gal  which is
> >approx 30" X 7'  the cost was $850.00    compared to $2000.00 (a year
> >ago) having it rolled at a fab plant.  I still have to find out the
> >exact specs on the propane tank however,  I'm not sure on the thickness
> >and I haven't confirmed the grade of steel.
> >
> >Brian
> 
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