All ACO grease traps work on the same principle of gravity separation.
The mixture of contaminated water and fat, oil and grease (FOG) flows into the device by passing a sediment basket. The sediment basket removes any larger particles that may be present in the drain waste. It is important to note that
the sediment basket volume is limited, therefore any significant amounts of debris should be removed before entering the grease trap or grease separator.
The physical capacity of the trap provides a separation area where relative density differences allow finer solids to settle to the trap floor and less dense FOG's to rise to the surface.
Separation occurs relatively quickly, thereby allowing less contaminated water to flow to the outlet drain during periods of intense use.