So I've been using a 6 in, 12 foot long pvc tube since my setup has been functional. But it's a little too short. My ideal rail would be 12 inches in diameter, and 14-16 feet long. Like a millitube. Those are the shit.
I'm having such a hard time finding any pvc with a diameter in that area. Where do you get these? I have a feeling it's going to be expensive. Am I going to have to resort to stealing from a construction site?