污水下水道使用及維護
Use and Maintenance of Sewerage System
Household drainage follows the rule of“Cutting, Filtering, Avoiding and Dividing” to keep the drain pipelines running without trouble To maintain smooth household drainage, the drain pipelines also need to be maintained therewith. The household drain pipelines are like the blood vessels of the human body. They must be kept clear at all times so as to sustain the health of the house. “Living sewage drain works, the home health obtained!” Keeping in mind the four words “Cutting, Filtering, Avoiding and Dividing” can greatly extend the service life of sewer trenches, eliminate environmental odor problem and improve the living quality.
“Cutting” Catering industry is easy in producing sewage with high oil content; it is necessary to install the "grease trap" and ask qualified operators to recycle the waste cooking oil. In addition to preventing arbitrary discharge of waste oil, it can also prevent sewer trenches from clogging and stink.
“Filtering” Install water filters at drainage holes to prevent food debris, hair and other foreign matters generated at the kitchen sink or the bathroom from flowing into the drain pipes; prevent breeding of cockroaches and keep the drain pipes clean and unobstructed.
“Avoiding” Do not allow foreign matters such as cooking oil, food waste, wipes, wet paper towels, sanitary napkins and hair from flowing into the toilet or sink; ensure that the drainage is smooth and the toilet or drain pipelines are not clogged.
“Dividing” It is easy to distinguish between longfiber paper products and short – fiber paper products; toilet paper is a short-fiber product, which is easy to crack and can be thrown directly into the toilet. Yet, facial tissues and napkins are long-fibers; their products are added with a wet-strengthening agent, which is not easy to disperse in water. In addition, wet tissues cannot be dissolved in water either. If being thrown into the toilet, it can easily clog the drain pipelines.
Make good use of the “Cutting, Filtering, Avoiding and Dividing” to enhance the service life of sewer trenches and ensure unobstructed waterflow.
撰寫單位：工務局衛生下水道工程處
