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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?
If you really want to buy you can hit up stores like Noble (only in Canada), or you could ask construction workers where they got their stuff from, there will probably be at least one business close by that will stock that kind of stuff, they usually only sell in bulk to contractors and that kind of stuff so you might not be looking in the right place.