The ornamental design for a slurrysandblastingpot, as shown and described.
FIG. 1 is a perspective view of the pot;
FIG. 2 is a top view of the pot;
FIG. 3 is a back view of the pot;
FIG. 4 is a front side view of the pot;
FIG. 5 is a bottom view of the pot;
FIG. 6 is a left side view of the pot; and,
FIG. 7 is a right side view of the pot.
The broken lines shown in the drawings of the pot are provided merely for the purpose of illustrating environmental structure and form no part of the claimed design.