A sanitary fitting includes a light-permeable water-carrying outflow pipe
that has (i) an exposed end face and (ii) an input face located upstream
of the exposed end face. A light source, preferably including light
emitting diodes (LED), inputs light into the outflow pipe through the
input face. The light emerges from the outflow pipe at the end face, and
may also emerge at an exposed outer peripheral surface area of the
outflow pipe.