To repair cracks and stop water infiltration in inspection pits we use our well-tested sealing by the injection of resins. We use an acrylic sealant or a polyurethane resin according to circumstances, injecting the material into the wall through a high-pressure pump and thereby saturating all voids. This system is also suitable for stopping heavy infiltration of water as well as for sealing tank walls, faulty joints, cracks in rock, stone or concrete.