A mechanical siphon is the best way and remove only what the siphon will allow.
No chance of electrical sparks with a drill.
There is a great device at Northern Tools which is a clear flex line that is a
bout 3/4" in diameter, with an interesting siphon ball in the end. Just insert
and shake about 3 times and wallah!, here comes the fuel. Its almost as fun
as flying the plane. (not really). I can then spent time getting the plane ready
to trailer. You don't need to remove all the fuel unless you have a reason
for doing so. I added about 4 more feet of tubing to run over to my gas container
on the trailer.
The drain line is under 10 bucks.
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kitfox III w/ 582 greyhead
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