Tie a cotton ball on some builders' string. Stick that end in the conduit and put a vacume cleaner on the other end.
How about a fish tape? I've used the air method with conduit up to 200' long and 4" in diameter. Used a baggie and a compressor.mannyrock said:Thanks for this great information guys. I am currently working on a project, and couldn't figure out how to do this.