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Tackling Leakage in Communal Service in Housing Estates

If the management office suspects or is informed by WSD that there are signs of leakage in the communal pipes of a housing estate as indicated by the master meters of the housing estate, they should conduct investigation to locate the leaks and carry out rectification works as follows:

• Inspect the exposed parts of the communal pipes for signs of leakage.
• For housing estates with underground communal pipes, carry out step tests to identify the sections of underground pipes with leakage.
• For each section of underground pipes identified with leakage, engage leak detection specialists to find out the exact location of the leak spots.
• Repair the identified leak spots of the pipes, or replace aged pipes with serious leakage that are beyond repair.

If necessary, consult the Water Supplies Department (WSD) for technical advice on step tests and engagement of leak detection specialists. The following "Reference List of Local Service Providers which have provided Leak Detection Service under WSD's contracts", "Guideline on Leak Detection on Underground Communal Service of Housing Estates", and "Sample Contract Clauses and Specification for Procurement of Leak Investigation Services in respect of Underground Water Mains in the Communal Areas within a Development" are provided below for information. 

• Reference List of Local Service Providers which have provided Leak Detection Service under WSD's Contracts
• Guideline on Leak Detection on Underground Communal Service of Housing Estates
  
  Please find the relevant slides here with more details on this matter (only Chinese version is available).

• Sample Contract Clauses and Specification for Procurement of Leak Investigation Services

For the information of contractors providing leak investigation services, you may visit the website of the Hong Kong Institute of Utility Specialists (https://hkius.org.hk/current-hkius-company-members/).

Disclaimer: The Government of the HKSAR is not responsible for any error/incomplete information in the website of the Hong Kong Institute of Utility Specialists (HKIUS) and any loss or damage whatsoever arising out of or in connection with any information in the website. Users are responsible for making their own assessment of all information in the website and HKIUS should be contacted should there be any queries on any matter regarding the information.