I've used fiberlass pipe in underground lines used for gasoline. You can't bend it so they must sell sweeps. I notice the install part of the web page isn't up. I'd be curious as to how you connect it. The glue for gas piping is quite toxic and I wouldn't want to be in a closed area doing the glueing. I can't see how you'd do an offset bend either??. Very light to work with but not tough in impact so anywhere it was subject to abuse might be questionable also.
