Abstract: Manual washing system includes a bucket (2) provided with a base (10) and a lateral wall (12) having an upper rigid edge (11), and a mop (3) including a handle (4) associated to a head (5), the head (5) has a substantially plate-shaped body (50), the body (50) being associated to the handle (4) by a joint (6). The bucket (2) includes lateral wall (12) made of preformed plastic material with two or more successively foldable wall sections. The two or more wall sections are folded on the base (10), and the upper edge (11) is provided with a perimetral recess (14) and a locking element (15).