FIG. 1 is a top perspective view from one side of a bath according to the present invention; FIG. 2 is a top perspective view from another side of the bath of FOG. 1; FIG. 3 is a top plan view of the bath of FIG. 1; and, FIG. 4 is a cross-sectional view along 4-4 of FIG. 3. The dashed lines shown in the drawings represent unclaimed portions and form no part of the claimed design.