[fastfredracing]

For what it is worth, I have been using schedule 40 for over 10 years now, and the only failures I have had was when one line froze, and another time an air hose got yanked by a cars bumper, and ripped it off the wall. The line that froze was in a dropout, that I never used, and was blocked by some shelving, so I never drained it. It was full of water, and we had some serious cold weather, and I was off for a couple of days, so the shop was not heated in that time period
I ran the lines as a temporary solution to get me up and running when I moved my biz and just never got around to replumbing with black pipe. you will be fine. I run 165 psi line pressure.