The document summarizes converting the descaling nozzles in a hot strip mill to a new generation nozzle. Simulations showed the new nozzles could decrease water usage by 20% while maintaining strip quality. A pilot test confirmed these results, showing a 20% flow decrease and 12.5% energy savings. All nozzles were then converted, achieving the predicted savings and allowing one of three pumps to be shut off. This reduced annual energy usage by 9.3 million kWh, saving over 600,000 euros per year in electricity costs.