That's what I remembered David.
That is code here. Definitely a good thing. Conduit is easy to puncture with a backhoe, 2x6 is not so easy. Even with a huge excavator, you know when you hit a wooden plank.
It is not code, but I bury a PT 2X6 on top of the pipe during the refill,
That is code here. Definitely a good thing. Conduit is easy to puncture with a backhoe, 2x6 is not so easy. Even with a huge excavator, you know when you hit a wooden plank.