FIG. 1 is a perspective view of a mixing tap. FIG. 2 is a top plan view of the mixing tap of FIG. 1. FIG. 3 is a bottom view of the mixing tap of FIG. 1. FIG. 4 is a front view of the mixing tap of FIG. 1. FIG. 5 is a rear view of the mixing tap of FIG. 1. FIG. 6 is a left side view of the mixing tap of FIG. 1; and, FIG. 7 is a right side view of the mixing tap of FIG. 1.