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I used a similar testing procedure and second all Bob's suggestions. After setting up my test, I had had my balloon standing up nicely at mid-afternoon but by the time I left the shop that evening the balloon had collapsed! I left the shop in disgust! To my surprise, when I went out to the shop (an unheated garage) at noon the next day the balloon was again standing at attention! Don't forget in addition to changes in atmospheric pressure, changes in temperature also effects the pressure in the tank. When the shop warmed to the previous day's temperature the balloon had returned to its original size! No leaks......YIPPEE! It followed this pattern for the next several days. Just my .02
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On Mon, Jan 26, 2009 at 4:42 AM, Robert Pastusek <rpastusek@htii.com> wrote:
Bottom line: This method works well, and is safe to use. The tanks can stand
VERY LITTLE positive or negative pressure, so no matter what method you use,
be very careful, and don't even think about approaching your tanks with a
compressed air hose...or even a vacuum cleaner hose for that matter!
Bob Pastusek
--
John McMahon
Lancair Super ES, S/N 170, N9637M (Reserved)
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