Georgia Septic Installer Practice Test

What is the formula to calculate grease trap capacity for restaurants?

1. (Number of seats in restaurant) x (15 gallons per seat)

2. (Number of seats in restaurant) x (20 gallons per seat) x (loading factor)

3. (Number of seats in restaurant) x (25 gallons per seat) x (hours open/12) x (loading factor)

4. (Number of seats in restaurant) x (30 gallons per seat) x (loading factor)

The correct answer is: (Number of seats in restaurant) x (25 gallons per seat) x (hours open/12) x (loading factor)

The formula to calculate grease trap capacity for restaurants utilizes a comprehensive approach that takes into account the number of seats, the expected waste generation, operational hours, and a loading factor that reflects the nature of the establishment. The correct answer incorporates the number of seats multiplied by a variable rate in gallons and further considers how many hours the restaurant is open relative to a standard period. By using a design of 25 gallons per seat, one can better estimate the amount of wastewater and grease that may be produced in a day, adjusting for the operational hours ensures that this calculation reflects actual usage. The loading factor is essential in adjusting the capacity based on specific factors such as the type of food served or the expected grease production rate, which differs from one restaurant to another. This consideration is crucial for effective grease trap sizing to prevent clogs and ensure proper function. Other formulas provided do not encompass all these important variables. For instance, calculating without considering hours open or using a standardized loading factor might lead to inadequate capacity estimates, leading to potential system failures or regulatory non-compliance. By including all these elements, option C establishes a more accurate and reliable method for sizing a grease trap in a restaurant setting.