How to improve lower side parts washing in car wash TUNNELS?

Come migliorare la pulizia nella parte bassa delle autovetture nei TUNNEL di autolavaggio?As for car wash tunnels, the specific treatment of car sides can be left to side-washers. They are available both in a mono diameter version and in a double length one, so called KAMM. These brushes can fit any car wash system and will satisfy even the most demanding customers.