When the leak appears, according to the technology of the use of Waterplag, the following operations must be performed.
Using a perforator, divide the hole of the leak into 6 centimeters in diameter and to the same depth. The shape of the cut should resemble a swallow tail. That is, the tape of the punch should be kept at a slight angle to the surface perpendicular, so that the diameter is more than outside inside. This shape of the hole will contribute to the better fixing of the waterplag in the body of the wall.