Thanks for posting the video. It is a good start I think.
I clean my paintbrushes with a solvent too, but after that I then clean the brush with water. Reason being, some washes are alcohol based and over time will dry out the bristles of the brush. By adding the second water wash to the brush really reduces the chance of the bristles drying out. I have some high priced brushes that I have had for almost 20 years that are just as good the day I got them.
Just an FYI is all.