To provide an indication and display method for the changeover reference position of a discharged water shape, low in production cost and not generating the extinguishment of a printing surface due to abrasion or the like in a water sprinkling nozzle.

A through-hole is bored in the projecting piece of a nozzle body to make it possible to peep a nozzle grasping cylinder having a color different from that of the nozzle body through the through-hole. By this constitution, a user is informed of the changeover reference position of the discharged water shape in the same way as a case printing an arrow on the projected piece of the nozzle body.