DESCRIZIONE
The invention relates to a system for the polishing treatment of inner walls of aquatic enclosures (1), comprising at least one tank (21) of abrasive mixture and at least one surface treatment head (30) which communicates fluidically with the tank (21) of abrasive mixture, means (10, 11) allowing the treatment head to be moved along the wall to be treated, and means allowing the treatment head to be supplied with a substantially continuous flow of abrasive mixture.