The tubing has “manufactures memory” which causes it to want to bend back into its original shape. Working alone, in a small space like my crawl space, under the house, made it a challenge, as I had to wedge it into the shape I wanted until I could secure with metal suspension straps and clamps. The compression rings are tight, by design and you have to work to get them in to the ends of the tube. Once it’s compressed they hold great.
Alex B. 
farmsisters 
