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[]
[null,"City of Kennedale, Texas"]
[null,"Grease Interceptor Sizing Calculator"]
[]
["How to Use This Calculator:"]
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["Step One: Count up the number of plumbing fixtures/drains in  any food preparation, serving, handling, or clean up area. This includes condensate drains unless the condensate drain is elevated or has a lip that prevents other wastewater (i.e. mop water) from entering the condensate drain. Bathroom fixtures and rooftop condensate drains should not be plumbed to the grease interceptor or counted for grease interceptor sizing. "]
["Step Two: Input the quantity of each type of fixture/drain into the formula below."]
["Step Three: Each fixture/drain has an assigned Drainage Fixture Units (DFU) which, when multiplied by 7.5, gives the potential flow from that fixture/drain in Gallons Per Minute (GPM). This calculator will multiply the Total Potential Flow from these fixtures by a 12 minute Retention Time, and then will apply a discount of 40% to calculate the minimum required capacity in gallons of the grease interceptor. "]
["Step Four: Use the \"Minimum Required Capacity (Gallons)\" value below to select a standard grease interceptor size that meets or is larger than the minimum required capacity. For example, if the minimum required capacity is 584 gallons, a grease interceptor with a capacity of 750 gallons or larger would be acceptable."]
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["Fixture Discharge Size","Quantity","Drainage Fixture Units (DFUS)","Multiplier","Potential Flow (GPM)"]
["1¼\"",0,1,7.5,{"$f":"PRODUCT(B13,C13,D13)","v":0}]
["1½\"",0,1.5,7.5,{"$f":"PRODUCT(B14,C14,D14)","v":0}]
["2\"",0,2,7.5,0]
["2½\"",0,2.5,7.5,0]
["3\"",0,3,7.5,{"$f":"PRODUCT(B17,C17,D17)","v":0}]
["4\"",0,4,7.5,0]
["6\"",0,6,7.5,0]
["Total Potential Flow=",null,null,null,{"$f":"SUM(E13:E19)","v":0}]
["Formula Description:                                                                                                                                                                                                                  Total Potential Flow X 12 Minute Retention Time X 0.6 = Minimum Required Capacity (Gallons)"]
[]
[]
["Minimum Required Capacity (Gallons) =",null,{"$f":"PRODUCT(E20,12,0.6)","v":0}]
["Minimum required capacity is for guidance only. The City of Kennedale recommends against grossly oversizing grease interceptors; however, users who are likely to produce wastewater with atypical strength may be required to install a larger interceptor. For assistance completing this form or questions, please contact the City of Kennedale Community Development at 817-985-2133 and ask to be connected with the Building Official."]