I'm actually installing a spa sub-panel for a guy who was going to do his own installation. Orange store told him he needed to run the wire in PVC. So, he bought plumbing PVC and plumbing PVC 90's. Luckily, he didn't have the time to finish the job, and he called me. He even pulled a permit and everything! I had the camera in the truck, but I didn't have the heart to take pictures of his installation.
What blows me away is how people think the price charged for the job done right is too high.
