The ornamental design for a dischargedevice for a wastewater management system of a recreationalvehicle, as shown and described.
FIG. 1 is a perspective view of a discharge device for a wastewater management system of a recreational vehicle in accordance with my design.
FIG. 2 is a front view thereof.
FIG. 3 is a rear view thereof.
FIG. 4 is a left side view thereof.
FIG. 5 is a right side view thereof; and,
FIG. 6 is a top view thereof.
The broken lines shown represent portions of the discharge device for a wastewater management system of a recreational vehicle that form no part of the claimed design.