Hi Brian,
I didn't like the idea of a hatch for access to my Andair watsit, either. I
therefore made a tube by wrapping four plys of bid around the tubing left
over from the aileron push-rods. (The tube was well waxwd first, of course!)
The GRP tube is exactly the right inside diam to take a standard fuel
check/tester (the clear plastic sort).
I bonded the tube directly under the Andair which is fitted with the usual
T-shaped drain/test valve.
All I have to do now is bend down, pop the tester up the tube and push to
take a sample!
Hope this helps,
Regds,
Ron Jones.
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