BRIEF DESCRIPTION OF THE DRAWINGS
Advantages, nature, and various additional features of the invention will appear more fully upon consideration of an exemplary embodiment. The exemplary embodiment is set forth in the following drawings.
FIG. 1 is a view showing a state in which a pump module is installed to a tank body;
FIG. 2 is a view taken on line II-II in FIG. 1;
FIG. 3 is a sectional view taken on line III-III in FIG. 2;
FIG. 4 is a view showing a state in which an extensible connecting unit is extended;
FIG. 5 is a schematic view showing a structure of a tank body and sub-tank;
FIG. 6 is a schematic view for explaining an action at the time of assembling a pump module; and
FIG. 7 is a schematic view for explaining an action at the time of assembling a pump module.