Chris, it's not really too difficult with a 20-inch tube. The tube is only seven feet long, so you only have to reach about 3-1/2 feet in from each side. Also, I have a person on my staff help me and he is a man of small stature who can get inside much easier. We use matt, not our chop gun, on projects like this. When I last did a 10-inch ID tube, THAT was a pain! I had to use a roller on a pole as well as a mirror on another pole. But even then it worked OK. Anything smaller than 10-inches and I'd probably make the tube on the outside of a collapsible tool, or just go with aluminum. --- slas@2nerds.com wrote:
How do you get inside a long tube to apply fiberglass near the middle of the tube? I can see how one might easily apply fiberglass to the inside of a tube near the ends of the tube, but how do you get to the middle portions of the tube? Do you have a staff of small gnomes who can crawl inside the tube to do the work, or do you just have rubber arms? :-)
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