The calculation of the required performance of a grease trap depending on the size of the sink is necessary to ensure proper and effective removal of grease, oils, and fats from wastewater. The size of the sink directly affects the amount of wastewater generated and the amount of grease, oils, and fats that enter the drainage system. Therefore, it is important to properly size the grease trap to ensure that it can handle the expected volume of wastewater and effectively remove grease, oils, and fats to prevent clogs and backups in the drainage system. By calculating the required performance of the grease trap based on the size of the sink, it is possible to choose the appropriate size and ensure that it is capable of meeting the needs of the facility.