Few ecological ultimately

Yes, even if this tool is reusable at will (well I just bought it, so I'm not very objective at the moment because three uses), we need a lot of water to clean (even soaking it is not top). In addition it must wait until it is dry to reuse and as it is still rapidly saturated hair (full moult at the moment ...) you will understand that I am a little disappointed!
I did not quite understand what is the "brush" on the side, but I did not have to read all the comments (not seen on the box). I'll probably end up throwing fashionable hair on my pant legs ...