Your workplace is also connected to the Council sewer system by a pipe with an inspection opening.
See protecting your inspection opening
Water used for personal hygiene at work, for example washing hands or flushing the toilet, is classified as "Domestic" sewage and does not pose an increased impact on Council wastewater treatment plants.
All other sewage from your workplace, such as manufacturing, restaurant and vehicle washing wastewater, is termed liquid trade waste.
Your workplace needs approval from Council to discharge any of this type of sewage into the system.
See how to apply for liquid trade waste approval