"DZIN" wrote in message
oups.com...
A tractor service shop in town uses 1" CPVC for all their air lines.
(the light tan stuff) They've used it for the last 18 years without
incident. Their system is at 150 PSI leaving the compressor.

It may go another 18 years but it can go tomorrow. There are real incidents
of air lines rupturing and thus, the reason for not using it.
http://www.osha.gov/dts/hib/hib_data/hib19880520.html