I checked at a Village Farm and Home in our nearest town but them and the hardware store only had threaded short pipe for like plumbing, I think. I'd like to get something in at least 8' length. I need about 5' of the heavier one in several different lengths that we will have to cut. Some place has got to have what I am looking for, right? I'll keep you posted on whether I find it or not. Thanks for the suggestions.
