Devon&Devon Memphis Instructions De Montage page 24

10)
Mark the four holes where the washbasin will be fixed to the
wall. Remove the washbasin and drill the four holes according to
the above marks.
11)
Insert the wall dowels into the holes, reposition the washbasin
and fix it with the screws and the plastic washers (H+I) that are also
supplied.
23
E
N
G