coke bottle tanks

[Chuck Hochhalter]

After following all the opinions, observations, thoughts, revelations
etc...

I agree with Jim, use the tank to make weight when it is required and
utilize your tetra or whatever you use on a regular basis and not worry
about all the unknowns that come along with long time use of the dietary
fuel cell.

Chuck

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Jim Ivey
Sent: Monday, August 08, 2005 6:02 PM
To: discussion at nsrca.org
Subject: coke bottle tanks

All    FYI
 I am still experimenting with the plastic bottles to use for tanks.I
used coke bottles that shrunk.I have filled half way a closed 20 oz
Aquafina water bottle with 30% heli and let it set for 1 week. I started
with a middle diameter of 2.687 inches and a height of 8 7/8 inches. The
bottle now is 2.556 inches in diameter and 8 5/8 inches high.The bottle
is much smaller, fluid wise.
I am suspecting any of these bottles will shrink with fuel in them.The
solution is to use the tank maybe 4-5 times and throw it away and make
another. Knowing this You can get a quick weight loss of 2 oz for
instance at the nats or anywhere you will be weighed.   Practice with
the tettra's.
 Velly intresting.

Jim Ivey


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