FIG. 1 is a front-right-perspective view of an illustrative embodiment of the pump assembly;
FIG. 2 is a front-left-perspective view of the pump assembly;
FIG. 3 is a rear-right-perspective view of the pump assembly;
FIG. 4 is an upward-looking, right-perspective view of the pump assembly;
FIG. 5 is an upward-looking, right-perspective view of the pump assembly;
FIG. 6 is an upward-looking, left-perspective view of the pump assembly;
FIG. 7 is a top view of the pump assembly;
FIG. 8 is a bottom view of the pump assembly;
FIG. 9 is a front view of the pump assembly;
FIG. 10 is a right side view of the pump assembly;
FIG. 11 is a rear view of the pump assembly; and,
FIG. 12 is a left view of the pump assembly.
The broken lines in FIGS. 7, 8, 9, and 11 are included for the purpose of illustrating portions of the pump assembly that form no part of the claimed design.