The ret ained FOG should be regularly removed or pumped out of the interceptor. If your grease interceptor is undersized, you may be required to clean it out more often until you install a properly sized unit. A grease interceptor or automatic grease removal device shall be required to receive the drainage from fixtures and equipment with grease-laden waste located in food preparation areas, such as in restaurants, hotel kitchens, hospitals, school kitchens, bars, factory cafeterias and clubs. I would argue the former since, as noted above, each connected fixture is already trapped and the vent just serves to allow for the displacement of air it is not protecting a 1'' trap seal. Jvfv,=6b2PWYgmwxHI$tow+0f3 &b%7ROLBB$e0p^,#&Yu^c.B%Nc>SIK_~;r |x!3O Trap seal protection is hbbd```b``vA$S+^$Al$k9HD+D "_&) rB8H02UzeQ , ` `q'"& O@5 M_*! T! endstream endobj startxref 0 %%EOF 177 0 obj <>stream This includes: restaurants, fast-food operations, cafeterias, hospitals, bars, grocery stores, bakeries, coffee shops, butcher shops and other similar operations that handle food. Wastes from industrial I would size it as half the size of the inlet with a 2-inchminimum, but your AHJ might want you to use the connected fixture units so it is worth checking with your AHJ. (pounds). A grease interceptor or automatic grease removal device shall be required to receive the drainage from fixtures and equipment with grease-laden waste located in food preparation areas, such as in restaurants, hotel kitchens, hospitals, school kitchens, bars, factory cafeterias and clubs. hb```b`0 B,@Q@g4l0>' #4pKU"[L[uM-6 z `:0 'b Both HGIs and GRDs are vented on the outlet. 7.5.5.2. venting ="http://thehandyforce.com/interior/bathroom-renovations/" title ="Toronto Bathroom renovation inspiration">venting of Interceptors. endstream endobj startxref However, these requirements also allow larger HGI models if site conditions are not ideal for a Gravity Grease Interceptor. Where to buy. You can ask Metro Vancouver to review your installation plan. We use cookies to provide you with a better experience. This is a very handy feature indeed. Keep a record of grease interceptor cleanouts and maintenance activities. The drawing shows a PDI G101/ASME Type A grease interceptor with an external flow control with air intake, however it also shows a trap on the fixture but no vent for the trap. Proper maintenance is the key to meeting these limits. n3kGz=[==B0FX'+tG,}/Hh8mW2p[AiAN#8$X?AKHI{!7. HyTSwoc [5laQIBHADED2mtFOE.c}088GNg9w '0 Jb Interceptors ( clarifiers) (including grease, oil, sand, solid interceptors, etc.) Some of these large interceptors (basically the plastic ones) come with vent connections on the tank itself. This checklist is provided as a reference tool and it is not intended to be exhaustive of all possible plumbing requirements. (4) The vent pipes referred to in Sentence (1) are permitted to be one size smaller than the largest connected drainage pipe but not less than 1 in. For SI: 1 gallon per minute = 3.785 hUmo0+~"UKHKnG@6%-m}o~8]c"!B!\d\?C\,8wf2:4sg% yNpi-v[Jl6@:SyQ gnZMlVlo'sH#B*i SPS 382.34(5)(c) (c) Exterior grease interceptors. By continuing to use our website, you acknowledge the use of cookies. (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. Do not purchase a grease interceptor without obtaining a building plan approval includingan Industrial Waste approval letterspecifying the size and design of the interceptor that will be required. Here are a few examples. grease interceptor. The above diagram would not be compliant with the UPC. 4. refer to local plumbing code for venting, fixtures, and trap requirements. It may also include more items than a specific set of plumbing plans may encompass. shall be required by the Building Official where they are necessary for the proper handling of liquid wastes containing grease, flammable wastes, sand, solids, acid or alkaline substances, or other ingredients harmful to the building drainage system, the public or The unit shown is certified to ASME A112.14.3 Type C (without external flow control) with a built-in or integral flow control and does not require an air intake. We can help with questions about the technical requirements of the regulation. endstream endobj startxref Does the interceptor require a vent? Older service trucks have weaker vacuums, and theres no telling who will show up. If you dont know which fixtures are connected to a grease interceptor, call a plumber or other service provider to trace pipes back to the grease interceptor. 6111.45 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. endstream endobj 674 0 obj <>/Metadata 65 0 R/OCProperties<>/OCGs[683 0 R]>>/Outlines 85 0 R/PageLayout/SinglePage/Pages 666 0 R/StructTreeRoot 138 0 R/Type/Catalog>> endobj 675 0 obj <>/Font<>/Pattern<>/Properties<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 676 0 obj <>stream Most inspectors would say yes because the unit itself is trapped and a trap needs a vent, but if you ask the inspectors in Los Angeles City, they would say no, due to the fact that each fixture upstream of the trap is individually vented. Units supplied with external flow restrictors are vented on the inlet . endstream endobj 679 0 obj <>stream A grease interceptor or automatic grease removal device shall be required to receive the drainage from fixtures and equipment with grease-laden waste located in food preparation areas, such as in restaurants, hotel kitchens, hospitals, school kitchens, bars, factory cafeterias and clubs. 4101:3 - Board of Building Standards: Ohio Plumbing Code, Ohio Admin. Wastewater leaving the grease interceptor must not exceed 300 mg/L of oil and grease and 600 mg/L of solids. Enzymes, solvents, and emulsifiers are not permitted as they will only change the form of grease, allowing it to be carried out of the grease trap with the wastewater and deposited in the collection system. processes, meat packing and food processing facilities and similar processing 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. {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. into a grease interceptor, the FOGS are intercepted or filtered out into a large underground holding tank. Austin Waters Office of Industrial Waste (IW) modified its grease interceptor policies in April 2021. This installation would be compliant with both the IPC and the UPC. %%EOF A grease interceptor as described in these standards shall be installed in any business establishment with kitchen facilities including restaurants, cafes, lunch counters, cafeterias, supermarkets, convenience 0 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. hbbd``b``Lq ( $?a`bd2)f`$@o n Since the interceptor comes with a flow control in the inlet, if your drainage flow rate exceeds the rating of the interceptor the waste will back up and end up on the floor. Note: CSA 481.3 -12 requires dishwashers to be discharged into a dedicated grease trap. Metro Vancouver 2023 | (d) do not connect to each other or any other vent pipe. If there is no place to bury them outside they are often located in parking garages. There are the large gravity grease interceptors, concrete for many years, but made of plastic in more recent years. You would think after being around so long that the plumbing associated with these units would be long established and well defined, but it is not. endstream endobj 1047 0 obj <. not required in garage floor drains in one-, two-, and three-family Interceptors and separators shall be designed so as not to become air bound. . Extremely large volume GIs may have three compartments; While operating at the GI's rated flow capacity, the first compartment must provide a retention time of no less than seven minutes, and the second compartment must provide a retention time of no less than five minutes (~60/40 split); GI inverts and vents shall be external to the compartments. By continuing to browse the site you are agreeing to our use of cookies in accordance with our Cookie Policy. 14420 ,J Vent the grease interceptor on the inlet side. Fats, oils and grease in the sewer system costs the region over $2.7 million each year. . 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. Metro Vancouvers Food Sector Grease Interceptor Bylaw 268 requires commercial and institutional kitchens to install and maintain a grease interceptor to reduce fats, oils and grease (FOG) in the sewer system. (5) Every vent pipe that serves an oil or grease interceptor and is located outside a building shall be not less than 3 in. Grease interceptors shall be constructed of durable, corrosion-resistant materials and shall have water-tight covers securely fastened in place. HGIs are generally made from lined steel and are much smaller than gravity grease interceptors. Most jurisdictions would say no because the interceptor is trapped internally. This drawing shows a semi-automatic draw-off type grease interceptor but without a vented external flow control. 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. 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. Book -Volume 4, Chapter 8, Grease Interceptors or CSA B481 Series-12 may also be considered. The interceptor must be cleaned whenever 25 percent of any chamber becomes filled with FOG or solids. (2) Adjacent compartments within every oil interceptorshall be connected to each other by a vent opening. Then again, thats how I prefaced my December 2015 article, so luck has certainly not been on my side. endstream endobj 677 0 obj <>stream All exterior interceptors shall be designed and constructed in accordance with this paragraph, so as to constitute an individual structure. For compliance with the UPC this drawing would have to show both a vented external flow control and a trap and vent for the fixture. hbbd```b``5 )D/r`v&/A' ([bH0l-g3R ,> $^,$$ ?o 4} As waste water flows through a kitchens plumbing (3-compartment sinks, prep sinks, mop sinks, dishwashers, floor drains, etc.) This material is COPYRIGHT QUEEN'S PRINTER FOR ONTARIO, 2008-2018. PDI G101 mandates the installation of a vented external flow control. A plumbing line upstream of grease interceptor.
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