Clean the trap sides, lids, and parts. Commercial food waste disposers shall be permitted to discharge directly into the building's drainage system. If possible, watch the grease hauler to make sure that the interceptor is completely cleaned and free of FOG buildup. Yes, it is highly recommended to connect the dishwasher with a grease trap directly. These may be located outdoors, or indoors if located away from food preparations areas and the location is approved by the Ventura County Health Department. Flow rate calculations with a dishwasher are performed using a rate of 6 gallons per meal. The Plumbing and Drainage Institute (PDI) has done . The Department of Environmental Protection (DEP) routinely sends inspectors to verify that such businesses have appropriate and well-maintained grease interceptor systems. If they are not plumbed into the device, then they should not be included in the sizing calculation. First you have to know what type of fixtures should connect to your grease interceptor: kitchen sinks, bar sinks, mop* sinks, dishwashers, glass washers, espresso machines and floor drains* all drain into the grease interceptor. The grease trap/grease interceptor shall be constructed with a minimum of two baffles. l A Grease Interceptor connection and survey and inspection fee is required ($322.00 fee). 8GPM 1.5" inlet/outlet grease trap. A grease interceptor is not required where only one auto . An "auto fry" is defined as an enclosed, ventless, self-contained individual-serving deep fryer. dishwasher pre-rinse sink must be connected to grease protection. FOG wastes must be regularly removed or pumped out of the interceptor. A final requirement is that water flowing through a grease interceptor must not have a temperature above 180F. Ladle off the layer of grease and oil floating on top of the water. . Commercial food waste disposers shall be permitted to discharge directly into the building's drainage system. (7) Sewer lines which are not grease laden, which are not likely to contain FOG, or which contain sanitary wastes shall not be connected to a grease interceptor. Grease Trap (designed for one fixture unit each) 3 compartment sink Mop sink Pre-rinse sink (*if trap is large enough) Traps should not have dishwasher attached, nor should any additives be used prior to the trap. 5. Many cities have in their FOG Mgt. Grease interceptors may be constructed of concrete or cast iron. To clean, remove the cover of the interceptor and scoop out any grease and/or oil that has collected on top. When a grease interceptor is to be used, the dishwasher shall be connected to the grease interceptor. STEP 9: Use the sink plunger and cover the entire drain hole with it. Using a pot scrubber with soap and room temperature water, remove excess waste from the lid and trap sides. Move the indirect drain to a funnel with trap between the grease trap and the wall drain, directly plumb the grease trap to the 3 basin/dishwasher retaining the vent and using the internal downturn in the grease trap as the outlet trap. 78. 3. Waste in excess of 140 degrees F is not discharged to any grease trap. 6. For a multi-rack-type commercial dishwasher with a typical flow rate of 5-6 gpm, the required water heater would be 300 gallons per hour for the dishwasher alone. Summing up to a total of approximately 50 gallons. Waste from toilets and urinals does not discharge to the grease interceptor. units per applicable pipe size connected to the inlet of the interceptor. Grease Interceptors & Sampling Manhole Standards. Grease Interceptors or "Volume based GRDs" Most grease interceptors are located outside of the FSE, underground. To prevent industrial grade . However, grease traps should not be installed very close to the dishwasher because a high flow rate and temperature can prevent proper separation and trapping of FOG and the initial stages. STEP 8: Clean out the other parts removed. i. 2,945 satisfied customers. The retention capacity of grease interceptors (in pounds) must be at least twice the numerical value of flowrate through the unit (in gallons per minute). No food waste disposer or dishwasher shall be connected to or discharge into a grease interceptor. Grease trap size will vary from one model to another. The cover should be removed carefully to avoid damage to the gasket. The rate without a dishwasher . Dishwashers equipped with booster heaters and/or using water in excess of 140 F shall not pass through any grease retention unit with less than a 1,000-gallon capacity. Why should I maintain my grease removal device and reduce the amount of grease going down the drain? (Note: the dishwasher pre-rinse sink must be connected to the Grease Removal Device). 78. The information in the above tables is from section 702.0 and tables 7-5, 10-2 and 10-3 of the Uniform Plumbing Code. I'm plumbing the drainage from my shop. Compliance Engineering Section. Dishwasher. Therefore, a 1,000 gallon grease interceptor must be installed in this case. Drainage from automatic dishwashers or restrooms should not be connected to the Grease Removal Device (Note: the dishwasher pre-rinse sink must be connected to the Grease Trap or Interceptor) There is no need to add an additional trap for the dishwasher. For residential use . . Q: Which fixtures/drains are required to be connected to the grease interceptor? The Dishwasher Discharges 10 GPM so "C" = 10GPM "D" is the Flow From the Can Wash 7GPM "F" is the 24 min Retention Time 3) Solve the Equation gallons . 22 Next, calculate the peak flow rates for each fixture by measuring the size. For a multi-rack-type commercial dishwasher with a typical flow rate of 5-6 gpm, the required water heater would be 300 gallons per hour for the dishwasher alone. A kitchen in a B&B with more than nine rooms will need installation of a grease interceptor. Grease Interceptor Sizing and Installation Guidelines For more information, contact: Lynnwood . The applicable grease trap for a one minute drain period will then be a 50 gpm grease trap, and 25 gpm for a two minute drain period. However, interceptors are designed to separate free floating FOG not FOG that has been emulsified by surfactants. Tank Size (in gallons) = 66 x 2 x 1.5 x 1.5. It is not meant to replace advice from a plumber or . How is waste oil/grease handled, stored and recycled/disposed? *Prerinse sink to dishwasher If the FSE has a prerinse sink to the dishwasher, then there will only be 1% to 2% of the total FOG discharged to the sewer coming from the dishwasher. OIL, SAND, and SEDIMENT INTERCEPTORS ZURN PLUMBING PRODUCTS GROUPSPECIFICATION DRAINAGE OPERATION, 1801 PITTSBURGH AVENUE, ERIE, PA 16502 PHONE 814/455-0921 FAX: 814/454-7929 WEBSITE: www.zurn.com Page 1 PICTORIAL INDEX Z1189 Oil/Sediment Interceptor Z1194 Oil Level Sensor Retrofit Kit Grease traps should be connected to any fixture or drain that discharges wastewater containing FOG, including sinks for washing dishes and drains serving self-cleaning exhaust hoods and cooking equipment. This agreement should follow in perpetuity to all property owners. Which kitchen fixtures should I connect to the interceptor/trap and are there any that should not be connected? grease interceptor. Hydromechanical grease interceptors shall be provided an approved, readily accessible flow control Gravity grease interceptors shall not be installed in a part of the building where food is handled Each business establishment shall have an interceptor that serves only that establishment unless otherwise . The size of a grease trap or grease interceptor shall be as determined by the MRWPCA. A. dishwasher w/ 2" pipe to floor sink (2"drain line for 4 DFUs) Total = 29 DFUs. A Development Review signature approval is required on this form. 1.5" Drain for the kitchen is sufficient providing the drain is clear. The retained FOG should be regularly removed or pumped out of the interceptor. . There are two primary types of grease traps. No food waste disposal unit or dishwasher is connected to or discharges into any grease trap. (FSE) has a dishwasher. Flow rate calculations with a dishwasher are performed using a rate of 6 gallons per meal. This tool provides information on the size of the grease interceptor required to meet bylaw requirements and identifies which fixtures should be connected to the grease interceptor. There are exceptions to the above on a case by case basis. Boiling, hot water should not be poured into a grease trap. Policy to not have the dishwasher connected to the grease interceptor. the Endura Grease Interceptor can be connected to dishwashers. Grease interceptors should have all grease removed as frequently as necessary to avoid exceeding the interceptor's rated capacity. It can be found: in the manufacturer's spec sheet or website ; on a sticker on the fixture itself; by contacting the manufacturer ; . Basically, a grease trap is a plumbing device that separates the grease, oil and excess food stuffs from the water that can safely enter the sewer system. with the grease interceptor(s). How grease traps work. 96-05 Horace Harding Expressway, 1 st Floor. In many cases this may mean that a larger grease trap may be required than the one specified by the sizing criteria. This means that they must be connected to a grease interceptor, but they do not increase the size of the grease interceptor required for . These lines are also new and unrestricted. Grease Interceptors - all grease producing fixtures except toilet/bathroom waste should be connected to the interceptor. Post Reply Things like produce prep sinks and hand washing sinks do not need to be connected to the grease device. Section 1014.1.3 - Unless specifically required or permitted by the Authority Having Jurisdiction, no food waste disposal unit or dishwasher shall be connected to or discharge into any hydromechanical grease interceptor. Don't Have the Grease Trap Connected to Garbage Disposal. (b) Note: The minimum size of a grease interceptor as stipulated by the FOG policy is 1,000 gallons. Grease traps/grease interceptors are to be installed at a minimum distance of 10 ft. from sinks and dishwashers to allow for adequate cooling of the wastewater. The size of the grease trap for the application here would then be determined by adding 44.9 gallons to 5 gallons. 1003.3.5 Hydromechanical grease interceptors, fats, oils and greases disposal systems and automatic grease removal devices. 1. Example 2: Restaurant with 40 seats, . Gently start plunging so that the suction effect unclogs any debris that is stuck in the drain.
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