A water storage apparatus (100, 1500) comprising: a base (101, 200, 1503) comprising a lower horizontal surface, one or more wheels removably attached to the base, a plurality of walls (102, 201) extending upwardly from edges of the lower horizontal surface, thereby forming a recess in the base defined by the walls and the lower horizontal surface, wherein at least one of the plurality of walls has a hole configured to be detachably coupled to a fluid dispenser; an upper portion (109, 300, 1501) comprising an upper horizontal surface (111, 302) having a plurality of walls (110, 301) extending downwardly from edges of the upper horizontal surface, thereby forming a recess in the upper portion defined by the walls of the upper portion and the upper horizontal surface, wherein the upper horizontal surface comprises a hole (112, 303, 1502); a plurality of removable panels (114, 1505) extending from the base to the upper portion forming a chamber defined by the plurality of removable panels, the base, and the upper portion, wherein the removable panels are separable from one another, and are configured to fit in a housing defined by the recess of the base and the recess of the upper portion when the base is adjacent to the upper portion; a plurality of columns extending from the base to the upper portion interposed between the plurality of panels and configured to fit with the removable panels within the housing defined by the recess of the base and the recess of the upper portion, the columns and the plurality of panels being detachably connectable along longitudinal portions thereof; and a flexible bladder contained within the plurality of removable panels, and comprising an orifice substantially aligned with the hole in the upper horizontal surface. a base (101, 200, 1503) comprising a lower horizontal surface, one or more wheels removably attached to the base, a plurality of walls (102, 201) extending upwardly from edges of the lower horizontal surface, thereby forming a recess in the base defined by the walls and the lower horizontal surface, wherein at least one of the plurality of walls has a hole configured to be detachably coupled to a fluid dispenser; an upper portion (109, 300, 1501) comprising an upper horizontal surface (111, 302) having a plurality of walls (110, 301) extending downwardly from edges of the upper horizontal surface, thereby forming a recess in the upper portion defined by the walls of the upper portion and the upper horizontal surface, wherein the upper horizontal surface comprises a hole (112, 303, 1502); a plurality of removable panels (114, 1505) extending from the base to the upper portion forming a chamber defined by the plurality of removable panels, the base, and the upper portion, wherein the removable panels are separable from one another, and are configured to fit in a housing defined by the recess of the base and the recess of the upper portion when the base is adjacent to the upper portion; a plurality of columns extending from the base to the upper portion interposed between the plurality of panels and configured to fit with the removable panels within the housing defined by the recess of the base and the recess of the upper portion, the columns and the plurality of panels being detachably connectable along longitudinal portions thereof; and a flexible bladder contained within the plurality of removable panels, and comprising an orifice substantially aligned with the hole in the upper horizontal surface.