Bow Hair Cleaning

OBS: In the video I pour out the used acetone in the drain - DON'T DO THIS! It's very damaging for the environment. Instead, simply leave a little pile of absorbing paper in the sink for instance and pour the used acetone over it to let it soak it up. Let it evaporate completely and then throw out the paper in your normal trash. I think this should be environmentally responsible - otherwise, please let me know in the comments below.

Otherwise ;-) it could be called an authoritative bow hair cleaning procedure with clean acetone without oil from your local supply shop. Can't use nail cleaner.
WARNING: make sure you don't get any acetone on the stick since it can damage the varnish!