The ornamental design for a waterpump for a pond, as shown and described.
FIG. 1 is a perspective top and front view of my water pump for a pond;
FIG. 2 is a top plan view of my water pump for a pond;
FIG. 3 is a bottom plan view of my water pump for a pond;
FIG. 4 is a front view of my water pump for a pond;
FIG. 5 is a rear view of my water pump for a pond;
FIG. 6 is a side view of the left side my water pump for a pond; and,
FIG. 7 is a side view of the right side of my water pump for a pond.
The top views FIGS. 1 and 2 show elongate recesses with multiple openings through which parts arranged in the interior of my Water Pump for a Pond can be seen; the parts in the interior are disclaimed. The side views FIGS. 6 and 7 show vertical elongate openings at the lower end; through the vertical elongate openings parts arranged in the interior of my Water Pump for a Pond can be seen; the parts of the interior are disclaimed. Due to the viewing angle, the end views FIGS. 4 and 5 show the contour lines of the ribs arranged between the recesses at the top side and left and right sides merging into each other; likewise, the end views FIGS. 4 and 5 also show the contour lines of the vertical elongate openings to merge because of the viewing angle.
The broken lines in FIGS. 1 to 7 are included for the purpose of illustrating portions of the water pump for a pond that form no part of the claimed design.