Yes Jim, that is correct. In fact, I pulled the directions for installation off
of
your web site.
1) Cut top of cylinder off with a die-grinder or other suitable cut-off tool
2) Insert  "Fin" mechanism gently into cylinder
3) Replace top of cylinder, making absolutely sure you have the grind marks left
from the removal process lined up to facilitate a proper "bond" when the
welding is
complete.
4) Overfill cylinder by no less than 1500 psi. to ensure that the welding
process
yielded no leaks.
5) And last but not least, roll cylinder around garage to test your new "Fin"
mechanism.

Another fine product that will ensure that you DIR! :)

Jim Cobb wrote:

> The inside of my tanks are smooth, and would impart no stirring action to
> a mix. Did  you weld fins inside your tanks to accomplish this mixing
> action you say rolling tanks does?
>
>    Jim
>
> Sender: Jeff Waugh  Date: 4/8/99 11:13 PM
>
> >     I'm not sure about the temperature actually being that much of an
> >influence
> >on the ending reading. I have found that generally low O2 % mixes such as
> >"deep"
> >Tri-Mix'es generally homogenize to the final desired analysis over a
> >period of a
> >few hours.
> >     I've found that high O2 mixes that if filled with O2 and topped with
> >air and
> >allowed to sit without agitation, can render an inaccurate analysis a day
> >later.
> >At that point, a simple "roll" around the garage will suffice to get you
> >what you
> >were looking for!
> >
> >Jim Cobb wrote:
> >
> >> I don't know about you guys but I think the problem we are dealing with
> >> here is the temperature of the mix rather than stratification. As the mix
> >> cools off the reading becomes more accurate.
> >>
> >>    Jim
> >>
> >> Sender: Steve Hogan  Date: 4/8/99 6:53 PM
> >>
> >> >
> >> >I have run into this and have modified my mixing procedures
> >> >so that after I add the O2 to the helium I wait 1 day (I
> >> >usually mix at night so waiting around is not appealing)
> >> >before measuring the O2 % (O2 & He). It is not hard to figure
> >> >out what percentage I expect after mixing O2 with He.
> >> >Next step is to add air, wait a few hours (usually doing
> >> >something else) and then measure again.
> >> >I fill about 50 psi/min so I expect to not get much mixing from
> >> >Brownian motion.
> >> >
> >> >Steve
> >> >
> >> >-----Original Message-----
> >> >From: Patricia Disler [mailto:pdisler@io*.ne*]
> >> >Sent: Friday, April 09, 1999 1:14 PM
> >> >To: S I L E N T I M M E R S I O N
> >> >Cc: techdiver@aquanaut.com
> >> >Subject: Re: Trimix Question
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >At 09:16 AM 4/8/99 -0700, you wrote:
> >> >>Frank,
> >> >>
> >> >>>Not me, but I do let the filled tanks rest a day before analyzing. An if
> >> >>>you want to tell me
> >> >>>thats not neseccary I recommend that you try this: Fill oxygen, top with
> >> >>>air, wait a minute,
> >> >>>analyze mix, turn the tank so that the valve faces ground, wait another
> >> >>>minute and than
> >> >>>re-analyze the mix.
> >> >>
> >> >>And it's the same... or not?
> >> >>When filling a tank the temperature and pressure are high which in turn
> >> >>gives a high diffusion coefficient. Makes the mix homogeneous almost
> >> >>instantaneoulsy (couple of seconds).
> >> >>What kind of differences do you get?
> >> >>What kind of analyser do you use, are you sure the hoses are drained when
> >> >>using a regulator or something?
> >> >>
> >> >>Regards,>
> >> >>THOMAS
> >> >
> >> >I have witnessed Nitrox mixtures take a while to fully homogenize. Several
> >> >years ago while mixing 80/20, (Yeah I know don't start) it came out 63% O2
> >> >approx 30 min after the very s-l-o-w top off to fill pressure. Yes I
> >> >checked the calibration of the aynalizer (Teledyne TD-50). Each time I
> >> >would check the O2 reading would climb. I did this over a period of
several
> >> >hours. Later it was right on 80%.
> >> >I'd have to say stratification can and does occur, esp. if there is not
> >> >enough turbulence during top off.
> >> >I have never seen this with Trimix as the fill rates are much higher.
> >> >However I suppose it could occur if they too were topped slowly.
> >> >At any rate I never seem to dive my gas until they show the correct
> mixture.
> >> >
> >> >
> >> >
> >> >"SILT HAPPENS"JD   JEFF DISLER
> >> >  SAFE CAVING       NSS 26000
> >> >--
> >> >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
> >> >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
> >> >--
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> >> >
> >>
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> >>
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> >
> >
> >
> >
>
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>
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