Removing coarse rust from a steel water tank – a riveted water tank from the century before last was already largely oxidized. Although it was still leak-proof, the corrosion was really deep. Due to the thick layers of corrosion, the riveting and overlapping of the sheets were not even visible in places. The outer surface was covered with several layers of different coatings. The customer wanted to treat it gently and prepare it for surface treatment for further use, this time not as a water reservoir, but as a decorative element.The coarse corrosion was first carefully removed mechanically and then the surface was carefully cleaned with a ROD500 pulsed laser.www.lsrservices.cz