Pet Water Fountain

FIG. 1 is a top, front, left perspective view of a pet water fountain of my new design;

FIG. 2 is a bottom, back, right side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings depict portions of the pet water fountain that form no part of the claimed design.