Solving the red rust and leakage issues in the water supply and hot water piping at the Marriott Hotel in the UK.

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

The Bournemouth Highcliff Marriott Hotel, part of the world's largest five-star hotel chain, the Marriott Group, was built in 1878 and has 160 rooms. Due to the use of galvanized steel pipes for hot water and water supply plumbing, very high iron levels were detected before the installation of the NMR pipe protector, with 6 mg/l from the hot water pipes and 3.46 mg/l from the water supply pipes. The deterioration of red rust in the pipes, including red water, was serious, raising concerns about future leaks. To eliminate red water from the water supply and hot water pipes, prevent red rust deterioration, and extend the life of the plumbing, NMR pipe protectors were installed in both the water supply and hot water pipes. Thirteen days after installation, the hot water and water supply samples taken first thing in the morning (stagnant water from overnight) were both clear, and the iron levels in the water had dropped to 0.007 mg/l, completely eliminating red water. The reduction in iron levels prevented the formation of new red rust, and it was demonstrated that the existing red rust in the pipes had transformed into a non-soluble volume of 1/10 of inert black rust. As a result, the formation of new red rust in the pipes was prevented, and the transformation of existing red rust into black rust confirmed the effectiveness of the NMR pipe protector in preventing red rust and extending the life of the plumbing.

Water Treatment