An elongated tub includes a first end and a second end opposite the first end. An A-frame structure includes a force transfer vertex positioned adjacent to a top portion of the first end, a first pivot vertex pivotally and releasably coupled to an elongated frame, and a second pivot vertex pivotally and releasably coupled to the elongated frame. The A-frame structure includes a first force transfer beam coupled to the first end and coupled between the force transfer vertex and the first pivot vertex, a second force transfer beam coupled to the first end and coupled between the force transfer vertex and the second pivot vertex, and a separation beam coupled to the first pivot vertex and the second pivot vertex.