Ruptured Towngas pipe causes headache in Tai Po
Towngas was forced to cut off gas supply to nearly 10,000 homes, shops and restaurants in Tai Po yesterday, after a burst water pipe damaged a pipeline.
About 300 workmen were still pumping water, sand and stones out of the polyethylene gas line and repairing it last night.
A Towngas spokeswoman said 2,000 households had their gas supply briefly restored, but it was cut off again due to unstable gas pressure. As of midnight, around 1,200 households had their gas supply back. Normal gas flow was expected to resume before noon, the company said.
'A large amount of salt water, sand and stones was poured into our gas pipe and affected a large area in our network,' a Towngas spokeswoman said.
The disruption began when a 15cm-diameter saltwater pipe burst under the footpath outside Lee Heng Kwei Secondary School in Hiu Wan Road, Tai Po, shortly before 5am.
Workers turned off the saltwater supply, which affected only the school.
'It's a 24-year-old, ductile iron pipe,' said Pang Kwok-fan, a senior engineer with the Water Supplies Department. 'The age of that pipe probably caused the burst.'