The project of Improvement to Dongjiang water mains P4 at Sheung Shui and Fanling recently completed by the WSD adopts the slip-lining method which involves rehabilitation of pipes by pushing a new liner (polyethylene liner) into the old pipe section by section.

The project of Improvement to Dongjiang water mains P4 at Sheung Shui and Fanling recently completed by the WSD adopts the slip-lining method which involves rehabilitation of pipes by pushing a new liner (polyethylene liner) into the old pipe section by section.

The project of Improvement to Dongjiang water mains P4 at Sheung Shui and Fanling recently completed by the WSD adopts the slip-lining method which involves rehabilitation of pipes by pushing a new liner (polyethylene liner) into the old pipe section by section.