Underground sewer pipes can be classified
into two categories: private connection pipes and public sewer
pipes. A private connection pipe links a homeowner's sewage outlet
to the public sewer pipe. The public sewer pipe, which is much
larger in size, is the main underground pipeline that links a
homeowner's private connection pipe to a sewage treatment plant.
Blockages in sewer pipes are caused by the indiscriminate disposal
of objects such as rags, solid waste, refuse or other materials
into the toilet. Such blockages cause toilets and manholes to
overflow, resulting in undue inconvenience to all concerned as
well as polluting the environment. As such, the public is requested
to refrain from such actions.
