A plumbing system refers to the pipes and fixtures installed in a premise/building for the supply of drinking water and the disposal of used water.
Water service plumbing work refers to the laying, installation, alteration, repair or replacement of water pipes, tanks, taps and fittings in the drinking water supply system, for the conveyance of drinking water.
Sanitary plumbing work, on the other hand, deals with sanitary discharge pipes and sanitary appliances (water closet or WC, urinal, sink, etc), such as installing, changing or relocating toilet bowls and sanitary piping system, for carrying used water from the premise/building to the used water system.
In Singapore, all water service plumbing work shall only be carried out by a water service plumber licensed by PUB. Where the work involves the design of a pumping system or storage tank, a professional engineer registered by the Professional Engineers Board, Singapore must also be engaged for the design and supervision before the licensed water service plumber can proceed with the work. The professional engineers and licensed water service plumbers shall comply with the requirements in the Singapore Standard CP48 - Code of Practice for Water Services, the Public Utilities (Water Supply) Regulations and the Public Utilities Act when carrying out water service design and installation works.
Water service plumbers are licensed by PUB to ensure that the safety and water conservation aspects of drinking water supply are not compromised and good standard of water service plumbing work is maintained in customers' premises.Licences are issued to water service plumbers who possess the necessary qualifications and experience to maintain quality service and standards in water service plumbing work and to ensure that their work does not cause water wastage or contaminate the water supply to customers.
Under the Public Utilities Act, it is an offence for anyone to engage a plumber who is not licensed by PUB to carry out water service plumbing work. It is also an offence for anyone to carry out water service plumbing work or advertise or otherwise hold himself out as a licensed water service plumber without a valid PUB Water Service Plumber Licence. The penalty for such offences is a fine not exceeding $10,000 or imprisonment for a term not exceeding 3 years or both.
PUB does not license plumbers for sanitary plumbing work.
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