The AquaDam is a reusable lightweight flexible plastic tube that, when filled with water, transforms into a temporary flood barrier. AquaDams have been used to keep floodwaters away from homes, businesses, and even a nuclear power plant. Our patented design incorporates (2) watertight inner tubes, side by side, inside of a woven baffled outer tube. An AquaDam can be turned to follow almost any conceivable installation path. AquaDams are made in standard heights from 1ft to 16ft tall, although most flood water depths can be controlled using a 4ft tall AquaDam. AquaDams are the best choice for expedient, temporary flood control. AquaDam, Water Controlling Water.