Portable water tank
A portable water tank is a temporary collapsible tank designed for the reserve storage of water in firefighting, emergency relief, and military applications. These tanks can be either supported or unsupported. The supported tanks have a steel or aluminum frame and range in size from or larger by custom design. Portable water tanks are also unsupported such as self-supporting tanks, blivets and pillow or bladder tanks and are available in sizes ranging from up to.