Flat Tires?

One of our least favorite jobs (thanks to our "Fancy Pants" with their
stupid, under-sized access doors) is airing up the tires on our Pathfinder.

I pull the plane back and forth while Mary fishes around for the stupid
nipple. If you want to hear a woman cuss like a sailor, just stop by the
hangar on tire-filling day!

It seems like we're having to fill the tires way too often. At least every
3 - 4 weeks, we notice that the plane has become a real bear to pull out of
the hangar, and that our take-off roll has become noticeably longer. Sure
enough, the tires will be down around 25%, from 40 to 30 lbs on the mains,
and from 30 to 23 lbs (or so) in the nosewheel.

This seems ridiculous. Is it a product of tubed tires, or do I have slow
leaks that should be fixed? Can you use "Fix-a-Flat" in aircraft tires?
(I'll bet not.)

How often do you guys have to fill your tires?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"