I've never seen anyone mention cleaning bowden tubes this way so I thought I would make a quick video. Hopefully this helps someone. Just a simple and quick solution instead of replacing the tubes.

Why clean a bowden tube?

The external feeder of a SV08 Max causes the tubes to get a bunch of debris in them pretty quickly. This is accelerated with filled filaments like CF-ASA. These tubes only have around 30 hours on them and they look like this. It caused a clog when I switched to TPU because it pulled this debris into the nozzle.