{KGGj~]?=^FG.'>rvN_?O%g{ (ye~/^W|_\o\6EU17W2 pM=='.zkZ$b-j`RjFo[n(lw]ot[iQ %[I$tf CtD#"~\An=Chh(3mZP1~GcDn+{*H "4]V4.qAIi`HimHOh1Rc6A- As^3ZX_Q=a6> 75wMw/w[w @4 Y|kf j}`} 2|u}zv&a{e4F;sP|;IR.vuy-S`4y)%)` bc7. hbbd```b``vA$S+^$Al$k9HD+D "_&) rB8H02UzeQ , ` `q'"& O@5 M_*! T! endstream endobj startxref 0 %%EOF 177 0 obj <>stream GRDs are trickier to size than HGIs. refer to local plumbing code for vent requirements on external flow control device. dwellings. Do not use enzymes or other agents that will allow grease to pass through the grease interceptor and into the sewer. 1003.9 Venting of interceptors and separators. e.) Venting is recommended on both the inlet and outlet side of the interceptor, or as governed by local code. Grease interceptors function using gravity and coalescence as a means of separation. A grease interceptor is not required where only one auto . Fats, oils and grease in the sewer system costs the region over $2.7 million each year. not required in garage floor drains in one-, two-, and three-family 1046 0 obj <> endobj Note: CSA 481.3 -12 requires dishwashers to be discharged into a dedicated grease trap. The purpose of a grease interceptor is to catch and collect fats, oils, grease, and solids (FOGS) from commercial and restaurant kitchens. This checklist is provided as a reference tool and it is not intended to be exhaustive of all possible plumbing requirements. As the waste stream flows through the orifice in the flow control device negative pressure is created, drawing in air from the air intake which is intended to mix with the waste water as it enters the grease interceptor aiding in separation efficiency. Standards also come into play when it comes to determining the type and location of vents upstream of a grease interceptor. Drum traps used as solids interceptors and drum traps Metro Vancouver bylaw enforcement officers may inspect your grease interceptor and your maintenance records. SPS 382.34(5) - 6/29/01 Is a grease interceptor required for an "auto fry"? Austin Waters Office of Industrial Waste (IW) modified its grease interceptor policies in April 2021. %PDF-1.6 % It looks like your browser does not have JavaScript enabled. 0 Both HGIs and GRDs are sized based on the flow rate of the waste stream in gpm. To be honest, much of the confusion over whether a drawing shows a code compliant installation of a grease interceptor or not, can be the result of boilerplate drawings provided by manufacturers in submittals or installation instructions. However, these requirements also allow larger HGI models if site conditions are not ideal for a Gravity Grease Interceptor. Wastewater leaving the grease interceptor must not exceed 300 mg/L of oil and grease and 600 mg/L of solids. 4101:3 - Board of Building Standards: Ohio Plumbing Code, Ohio Admin. If you are installing a grease interceptor, use our online tool for correct sizing. Protection Agency", or the authority in charge of the sewerage system into I dont know about you, but, for me, 2016 was a very difficult year, and I am not sorry to see it go. Wisconsin Legislature: SPS 382.34(5)(c)2.b. If you are designing in the UPC, there is a table in the Code for sizing the interceptors based on pipe size and associated peak flow rate, and then assigns interceptor sizes based on one-minute and two-minute drain down times. To separate them from water an interceptor provides a separation chamber which allows FOG to rise to the surface. The GI flowline (upstream of inlet invert) must be at least 3 inches above the tanks static water level; The GI vent must be at least 3 inches above the static water level of the tank; The GI inlet must be near an elevation that is one half of the tank's static water level height, and the GI outlet must be at least 12 inches above the tank floor; Adequate flow diffusion features must be provided to evenly distribute flow throughout the GI. Conceptual drawing of a City of Austin approvedgravity grease interceptordesign. hbbd```b``5 )D/r`v&/A' ([bH0l-g3R ,> $^,$$ ?o 4} Manufacturer's want to provide guidance for a broad range of installations without providing detailed drawings for every single installation variable that can exist. Some years ago, I was successful in getting a sizing table written in to Chapter 10 of the UPC relating fixture units to grease interceptor size, but the IPC still does not have such a table so it remains a mystery in that code. Our purpose is to serve and provide for our employees by being a resilient company that offers best-in-class products and services. If such is the case, they should be piped to the vent system and not left plugged, otherwise it may void the interceptor warranty. The sizing of common venting is specified in Table 911.3. Is it half the size of the connected waste piping? YY IpnnN$cG!v,:9g]7.x:Rtxr^-hZe\&_yVnC D0f0bH9 1_`cG\>L(&o(cmK T07( hbbd``b``Lq ( $?a`bd2)f`$@o n in size in areas where it may be subject to frost closure. The above diagram would not be compliant with the UPC. ), GREASE RETENTION CAPACITY For grease trap or grease interceptor routine or emergency maintenance, please give us a call! The letter will specify a minimum frequency. That being the case the interceptor does not require a vented external flow control - jurisdictions unfamiliar with this type of interceptor often question drawings like this and understandably so. L/m, 1 pound = 0.454 kg. When it comes to traps and vents for grease interceptors and the fixtures discharging to them, it's incumbent upon an engineer or contractor to identify and comply with local code requirements regardless what a manufacturer's drawing shows. hUmo0+~"UKHKnG@6%-m}o~8]c"!B!\d\?C\,8wf2:4sg% yNpi-v[Jl6@:SyQ gnZMlVlo'sH#B*i 992 0 obj <>stream 6111.44 This is fine if the waste hauler has a means of access to the unit with their vacuum hose, but often they are mistakenly buried in the parking garage where no such access exists, and a grease truck is much too tall to drive into a parking garage with 8'-4'' ADA clearance. 691 0 obj <>stream 2021 International Plumbing Code (Ipc) | Icc Digital Codes If you use this chart, I would use the one-minute column, or your interceptor might be undersized. . hb```b`0 B,@Q@g4l0>' #4pKU"[L[uM-6 z `:0 'b Where large central grease interceptors are entirely impractical, such as my old stomping ground of New York City, localized interceptors become the most practical solution. %PDF-1.5 % Generally speaking, most grease interceptors must be serviced at least every 90 days. into a grease interceptor, the FOGS are intercepted or filtered out into a large underground holding tank. level to allow for venting. in size connected to the outlet pipe, that connects to the plumbing venting ="http://thehandyforce.com/interior/bathroom-renovations/" title ="Toronto Bathroom renovation inspiration">venting system. 2018 International Plumbing Code (Ipc) | Icc Digital Codes As the waste stream flows through the orifice in the flow control device negative pressure is created, drawing in air from the air intake which is intended to mix with the waste water as it enters the grease interceptor aiding in separation efficiency. Most jurisdictions would say no because the interceptor is trapped internally. Assuming the interceptor is intended to serve as a fixture trap, there is no requirement to install an additional trap and vent between the fixture and the interceptor. Learn more . indicated dishwasher- significant are often of grease water flow and chops the foodSince a food waste grinder into solidified particles, with a cold associated with hot or warm grease laden waste congealing problems is GenerallyManufacturer's good idea to run food recommend a hydromechanicalinterceptor installation, interceptors Proper maintenance is the key to meeting these limits. If a grease interceptor needs to be installed, replaced or fixtures need to be connected, call a plumber or other service provider. x- [ 0}y)7ta>jT7@t`q2&6ZL?_yxg)zLU*uSkSeO4?c. R -25 S>Vd`rn~Y&+`;A4 A9 =-tl`;~p Gp| [`L` "AYA+Cb(R, *T2B- Please see below for the updated requirements. Have two years of records on hand and available for inspection. standard, or any other technical publication, the specific date and title of Conceptual drawing of a City of Austin approvedgravity grease interceptordesign, View contact information for grease trap manufacturers. PDF Grease Interceptor Sizing and Installation Guidelines - Tacoma Permits PDF and required for indoor installations. An "auto fry" is defined as an enclosed, ventless, self-contained individual-serving deep fryer. A grease interceptor shall be provided for proper handling of liquid wastes containing grease. (c) terminate not less than 2 000 mm above ground. 2) Minimum Size. PDF Plumbing Plan Review Checklist - Commercial Plan Review Hydromechanical grease interceptors shall meet the following requirements: Generally, HGIs are ideal for low FOG-producing establishments such as small sandwich shops, coffee shops, and bakeries that use disposable flatware and do not utilize an automatic dishwasher, due to the HGIs compact size. The Ontario Building Code | Venting of Interceptors A grease interceptor (or grease trap) is a device that separates fats, oils and grease from wastewater and stops it from entering the sewer system. 4. refer to local plumbing code for venting, fixtures, and trap requirements. e The IPC approves the use of and installation requirements for AAVs under section 918.0. The application of the referenced standards shall be limited and as prescribed in section 102.5 of rule 4101:1-1-01 of the Administrative Code.]. 2. minimum size of grease trap is 35 mgd and 70 lbs. H*w6PH/2402Q0 B]s3 "s=s \ It is also recommended to vent the outlet side of thegrease interceptor right after the outlet. Purchasing an interceptor prior to IW approval exposes the purchaser to risk of rejection and replacement costs. Further, some of plastic units can be ordered with a dip tube service connection that can be piped to the exterior of the build for service. hb```Lf yAXarPw`vB/+2[aa&]eL3DT -ke&{:2CFGC`h B j` SD {FC?X* iFWo}'R]EXe` @ If such is the case, they should be piped to the vent system and not left plugged, otherwise it may void the interceptor warranty. meet cleaning requirements. The ret ained FOG should be regularly removed or pumped out of the interceptor. plants shall be drained in accordance with the rules of the "Ohio Environmental 2y.-;!KZ ^i"L0- @8(r;q7Ly&Qq4j|9 1002.1 Fixture traps. `Iy|w|`D;8F (m7|@"`/(9c8-bu"+oI-:; f4 +kaG}Xro1FJV-.4a'o~f.al-'p~eVW8c=GWJVY6_? Failure to service a grease interceptor on a routine and timely basis can result in complete back-up of the kitchens plumbing system. Trapping and Venting for Grease Interceptors - Interceptor Whisperer Grease Interceptor are manufactured with patented distributed flow pattern and corrosion resistant fiberglass material capturing FOG before it clogs pipes, enters the sewer waste system, or spoils a successful operation. GREASE INTERCEPTOR (TYPICAL: 750 GALLON MINIMUM) - Vallejo Wastewater Los Angeles County grease interceptor detail Some of these large interceptors (basically the plastic ones) come with vent connections on the tank itself. (a) connect to the interceptor at opposite ends, (c) terminate not less than 2 000 mm above ground and at elevations differing by at least 300 mm, and. Does the unit need a running trap as shown in the 25-year-old detail by the county of Los Angeles? This is best done with an empty grease interceptor. PDF BILL NO. 2020- ORDINANCE NO. - Las Vegas TRAP REQUIREMENTS. The UPC does not include provisions for AAVs except as a part of an "Engineered Vent System" under section 912.0, much to the chagrin of engineers around the country. into a grease interceptor, the FOGS are intercepted or filtered out into a large underground holding tank. This installation would be compliant with both the IPC and the UPC. I would size it as half the size of the inlet with a 2-inchminimum, but your AHJ might want you to use the connected fixture units so it is worth checking with your AHJ. (2) Adjacent compartments within every oil interceptorshall be connected to each other by a vent opening. The Uniform Plumbing Code (UPC) does not permit a grease interceptor to serve as a fixture trap and also prohibits the installation of a vent between the air intake on the flow control and the grease interceptor. PDF Grease Interceptors - Wisconsin G. Encase the interceptor in well-packed " rock, or sand . It may also include more items than a specific set of plumbing plans may encompass. The following diagrams show some of the various approaches to common venting. The drawing shows a PDI G101/ASME Type A grease interceptor with an external flow control with air intake, however it also shows a trap on the fixture but no vent for the trap. For engineered GGIs, specific models shall meet the following requirements: The goal for engineered GGIs is to closely comply to the concrete GGI requirements but allow slight flexibility if site conditions are not ideal for a concrete GGI.

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