Georgia Septic Installer Practice Test

What is the minimum size for a grease trap?

1. 50 gallons

2. 75 gallons

3. 100 gallons

4. 125 gallons

The correct answer is: 125 gallons

The minimum size for a grease trap is 125 gallons because this capacity is generally necessary to effectively trap and separate the fats, oils, and greases (FOG) from wastewater in commercial food service operations. A grease trap with this size provides sufficient volume to ensure that the FOG has adequate time and space to rise to the surface and be contained, thereby preventing it from entering the sewage system or septic system. Smaller grease traps, such as those with capacities of 50, 75, or 100 gallons, may not have the capability to handle the volume of wastewater generated in busy establishments, leading to poor separation and increased risk of clogs or system failures. Therefore, utilizing a properly sized grease trap is critical for maintaining efficient waste management systems while also adhering to local regulations regarding wastewater treatment.