Grease Traps
Grease Trap Services
Professional Grease Trap Services in Arlington, TX
You can count on Jerry’s Plumbing and Welding for professional grease trap services.
There’s no job too big or too small for our experienced team of professionals located near Fort Worth, Texas. With years of experience, we offer professional, quality grease trap work at competitive prices. We use the appropriate process depending on the project for quality every time and your satisfaction is guaranteed.
Sizing of Grease Interceptors
The grease interceptor is generally sized according to the local plumbing code. The different variables include: number of meals per hour of seats, wastewater flow rate, wastewater detention line, storage factor, and detention time.
Uniform Plumbing Code Method:
As recommended by the Uniform Plumbing Code – Appendix H, the following sizing method is as follows:
Uniform Plumbing Code Sizing Method
1. Restaurants
(D) x (MF) x (GL) x (RT) x (ST) = Size of Grease Interceptor (gallons)
Where:
| D | = | Total number of seats |
| MF | = | Metal factor, based on establishment type & average time per meal: 1.33 Fast Food/Cafeteria (45 min) 1.00 Restaurant (60 min) 0.67 Leisure Dining (90 min) 0.50 Dinner Club (120 min) |
| GL | = | Gallons of wastewater per meal: 6 With dishwashing machine 5 Without dishwashing machine 2 Single service kitchen 1 Food Waste Disposal |
| RT | = |
Retention Time: 2.5 Commercial kitchen waste |
| ST | = | Storage factor, based on hours of operation: 1.0 Operation of 8 hours 1.5 Operation of 12 hours 2.0 Operation of 16 hours 3.0 Operation of 24 hours 1.5 Single service kitchen |
Fig. 3 – Typical Grease Interceptor Installation
For larger sizes and other commercial or industrial applications, contact our engineering department
Environmental Protection Agency Method:
As published in the EPA Design Manual – Onsite Wastewater Treatment & Disposal Systems, the recommended method for sizing a grease interceptor is as follows:
1. Restaurants
(D) x (GL) x (ST) x (HR/2) x (LF) = Size of Grease Interceptor (gallons)
Where:
| D | = | Number of seats in dining area |
| GL | = | Gallons of wastewater per meal, normally 5 gallons |
| ST | = | Storage capacity factor, min. of 1.7 for onsite disposal, 2.5 |
| HR | = | Number of hours open |
| LF | = | Loading Factor: 2.25 Interstate Freeways 1.0 Other Freeways 1.0 Recreational Areas 0.8 Main Highways 0.5 Other Highways |
2. Hospitals, Nursing Homes, other type Commercial Kitchens with varied seating capacity
(M) x (GL) x (ST) x (2.5) x (LF) = Size of Grease Interceptor (gallons)^3
Where:
| M | = | Meals per day |
| GL | = | Gallons of wastewater per meal, normally 4.5 gallons |
| ST | = | Storage capacity factor, min. of 1.7 for onsite disposal, 2.5 |
| LT | = | Loading Factor: 1.25 Garbage disposal & dishwasher 1.0 Without Garbage disposal 1.0 Without dishwashing 0.8 Without dishwashing & garbage disposal |
| a | = | Without dishwashing & garbage disposal |
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