The roughing is carried out by means of a manual roughing grille with a 10 mm pitch light and has the purpose of retaining and separating the floating and suspended bulky bodies, which drags the waste water with it.
The roughing is carried out by means of a manual roughing grille with a 10 mm pitch light and has the purpose of retaining and separating the floating and suspended bulky bodies, which drags the waste water with it.
