Post #1275578

@funkylab In this case, I didn't have to, because there cable channels along the way (just some walls to drill through). There is "fish tape" (often called "Einziehhilfe") here, which you can force through the cable channels somehow (if it's actually a pipe, you can hook a bag up to one end and use a vacuum cleaner to suck on the other end of the pipe!). Then just duct-tape the fiber to the fish tape and pull it through.