Other-JPN

The water transmission main at this site had been in service for more than 50 years and consisted of galvanized steel pipes (GSP). Severe internal red rust corrosion had developed within the 300 mm diameter pipeline, prompting consideration of decommissioning the facility in the near future. However, before further deterioration could occur, the red rust corrosion prevention and pipe rehabilitation device Pipetect...

The district water distribution network, constructed in 1981, had beeen the subject of frequent complaints from local residents regarding the discoloration of drinking water since the late 2000s. To address this issue, the district's water authority conducted a trial installation of the corrosion prevention device Pipetector. Based on the results of the trial, the water authority concluded that the device p...

A 20-year-old apartment building experienced internal corrosion in its domestic cold water supply piping. Water analysis conducted before the installation of Pipetector showed a chlorine concentration of 0.11 mg/L and an iron concentration of 0.27 mg/L. These results indicated that residual chlorine levels had decreased while dissolved iron levels had increased, suggesting ongoing internal corrosion within the pip...

Constructed in 1964, the water main serving the Onuma Lakeshore area in Hokkaido, Japan, is located within a holiday cottage development and a national park covering approximately 6.3 million m². The municipality initially considered replacing the aging pipeline due to severe internal corrosion and deterioration. However, the estimated replacement cost of approximately ¥3 billion was considered prohibitive....