"habbi" wrote in message
...
that is polybutylene

"habbi" wrote in message
...
What is the burst pressure of 1/2" black poly tubing rated for 100psi. I
want to bury it as an air line between my house and work building so it
will
have up to 125 psi in it. I have a lot of it for free that is why I want
to
use it.
Are you sure it's not polyethylene? Polybutylene is usually grey, PEX
whitish or brightly colored.

Schedule-40 PVC is adequate for shop air, so long as the pipes are either
buried, or far enough away from human contact so that bursting wouldn't
endanger anyone.

LLoyd