The Australian Standard, AS 4494: Discharge of commercial and industrial liquid waste to sewer, states that the receiving water authority has the power to regulate the use and design of grease traps in their jurisdiction.
Local water authorities have specific regional requirements. They recommend the size of the grease trap, the total volume of wastewater to be held in retention and approve the installation of the grease trap.
To ensure the longevity of the installation, water authorities usually provide a conservative estimate for the volume of wastewater to be treated.
For the latest water authority requirements, visit Approved product markets page.
ACO’s range of grease traps are designed and manufactured in Europe in accordance with EN 1825: Grease traps. ACO Australia believes that this is the most appropriate internationally recognised performance based standard.
The European Standard specifies nominal size (NS), sizing methods, principles of design, performance requirements and quality control.
“This Standard applies to traps for the separation of greases and oils of vegetable and animal origin from wastewater by means of gravity and without any external energy”. Extract from EN 1825. (Clause: EN 1825-1: 2004 – Scope)”
EN 1825 specifies a wastewater quality requirement of a maximum 25mg/L concentration of hydrocarbons. This ensures that a grease trap can effectively separate Fats, Oils and Grease (FOG) from wastewater, before discharging it into the sewer system.
ACO grease trap design life
The longevity of the grease trap is very important to ensure that it performs for the life of the application.
ACO’s grease traps comply with German Standard DIN 4040-100 and ISO 19001. These standards state that products must be designed to endure 25 years, above ground and withstand 50 years, below ground.