Certain hotel #RF water supply piping red rust and leak prevention measures

Case study of introducing NMR pipe protectors for preventing red rust and extending the lifespan of hotel hot water piping.

At Hotel #RF, which was built 38 years ago, significant red rust corrosion had progressed in the vinyl-lined steel water supply pipes, leading to leaks from the joints. Therefore, the red rust prevention and pipe longevity device "NMR Pipe Protector" was installed. Before the installation of the NMR Pipe Protector, a white filter was attached to the water supply faucet, and after running water for four days, the filter turned brown due to the red rust present in the water supply pipes, revealing that the iron content captured was 40 mg/l, indicating that the red rust corrosion in the pipes was quite advanced. One month after the installation of the NMR Pipe Protector, a white filter was attached at the same location and under the same conditions as before, and the captured iron content decreased to 23 mg/l. After six months of installation, the iron content further decreased to 14 mg/l, and the red rust in the pipes transformed into black rust that does not dissolve in water, demonstrating the rust prevention effect and longevity of the hot water supply pipes. It has been verified that if Hotel #RF continues to use the NMR Pipe Protector, all the red rust in the chilled and hot water supply pipes will change to black rust, allowing for pipe longevity at less than one-fifth the cost of pipe replacement work, extending the pipes' lifespan to that of the building. Naturally, leaks have been completely prevented since then.

Water treatment equipment