PROBLEM TO BE SOLVED: To provide an assembly-type tank for waste laver-net-washing liquid free from anxiety about leakage, requiring no storage place, and enabling a user to take back the waste laver-net-washing liquid in a stable condition. SOLUTION: This assembly-type tank for the waste laver-net-washing liquid stores the waste washing liquid while utilizing air space between a working ship and a laver-net-washing device set in the working ship. The assembly-type tank is made of a flexible thermoplastic elastomer or rubber so as to be assembled, deformable, divided into two to be set at both sides of the washing device, and made to be communicated with each other via a pipe. Such a structure of the tank results in stabilizing the washing device to keep the liquid surface in the tank parallel to the surface of the sea so that the working ship becomes stable. A detachable support pipe is arranged so as to increase fastness of the tank, a waterproof fastener provided at the back surface part of the tank is opened and closed to easily wash the inside of the tank, and a fixing band attachment is provided to more firmly fix the tank to the washing device. COPYRIGHT: (C)2005,JPO&NCIPI
