Cosmo Kajigaya Le Seine Mansion Water Supply Pipe Effect Verification of Red Rust to Black Rust

At Cosmo Kajigaya Le Seine, a pipe rehabilitation device called "NMR Pipe Protector" was installed in 2000, 14 years after its construction, to prevent red rust deterioration of the water supply pipes.
In the 10th year after installation, an inspection was conducted, confirming the transformation of red rust to black rust and that the progression of red rust deterioration had completely stopped.
Now, 20 years after the installation of the NMR Pipe Protector, and 34 years after construction, there are no issues with red rust in the water supply pipes, and they remain in excellent condition.

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