The dam can be repaired easily in case of cuts / short lengths lacerations (a few centimeters).
In the exceptional case of a tear while the dam is full of water, simply slide a piece of cloth/canvas inside the dam to close the gap (seal provided by the push of water on the canvas).
For dry or in-water repair, a repair kit can be provided. It contains a two-component polyurethane adhesive for soft PVC Zodiac (750 ml), and a strip of 5 m x 2 m PVC canvas.