I looked at the welding tubes at the hardware store yesterday and the only one's they had were over 12 inches long. I am shooting 5x7. What size are the tubes you are getting? I am assuming suitable for 8x10, right?

I settled on 10 foot section of conduit tube and mish mash of PVC parts. The hardware guy I got to help me really got into it and we were coming up with all kinds of concoctions. They would not cut the conduit down so I have the body makings of a lot of tubes.

My problem is the cap. It is not very convienient to get off. It gets stuck. Has anyone come up with a way to make this easy. By the way What does a waste Adapter look like. No one had a clue.