DISCLAIMER: THIS FORM IS NOT INTENDED TO BE SUBSTITUTED FOR A LICENSED PLUMBER. IT IS ONLY A REFERENCE AND SHOULD ONLY BE USED AS A GUIDE. ACTUAL SIZE MAY VARY. NOT RESPONSIBLE FOR ERRORS. Actual sizing should be per chapter 10 of the Florida Building Code 2004 Plumbing, (current edition) Sizing Formula for Restaurants Other Establishments with Commercial Kitchens Sizing Formula for Restaurants S * X GS * X (HR/12) * X LF * = Effective capacity of grease interceptor in Gallons S = Number of Seats in dining Area GS = Gallons of waste per seat (use 25 gallons for restaurants with china dishes and/or automatic dishwasher. Use 10 gallons for restaurants with paper or baskets and no dishwasher) HR = Number of hours restaurant is open. LF = Loading Factor (use 2.00 interstate highway: 2.50 other freeways: 1.25 recreational area: 1.00 main highway: 0.75 other highway) Other Establishments with Commercial Kitchens M * X GM * X LF * = Effective capacity of grease interceptor in Gallons M = Meals prepared per day GM = Gallons of waste per meal (Use 5 gallons) LF = Loading Factor (use 1.00 with dishwashing machine and 0.75 without dishwashing machine) Note: For other than private sewage disposal systems, reduce gallons values by 25 percent.