CHAPTER 10 TRAPS, INTERCEPTORS AND SEPARATORS

1 CHAPTER 10 TRAPS, INTERCEPTORS AND SEPARATORSSECTION CHAPTER shall govern the material andinstallation of traps, INTERCEPTORS and 1002 TRAP Fixture plumbing fixture shall be sepa-rately trapped by a liquid-seal trap, except as otherwise permit-ted by this code . The vertical distance from the fixture outlet tothe trap weir shall not exceed 24 inches (610 mm), and the hori-zontal distance shall not exceed 30 inches (610 mm) measuredfrom the centerline of the fixture outlet to the centerline of theinlet of the trap. The height of a clothes washer standpipe abovea trap shall conform to Section A fixture shall not bedouble :1. This section shall not apply to fixtures with A combination plumbing fixture is permitted to beinstalled on one trap, provided that one compartmentis not more than 6 inches (152 mm) deeper than theother compartment and the waste outlets are not morethan 30 inches (762 mm) A grease interceptor intended to serve as a fixture trapin accordance with the manufacturer s installationinstructions shall be permitted to serve as the trap for asingle fixture or a combination sink of not more thanthree compartments where the vertical distance fromthe fixture outlet to the inlet of the interceptor does notexceed 30 inches (762 mm) and thedeveloped lengthof the waste pipe from the most upstream fixture out-let to the inlet of the interceptor does not exceed 60inches (1524 mm).

2 Design of traps shall be traps shall not have interior partitions, except wheresuch traps are integral with the fixture or where such traps areconstructed of anapprovedmaterial that is resistant to corro-sion and degradation. Slip joints shall be made with anapprovedelastomeric gasket and shall be installed only on thetrap inlet, trap outlet and within the trap Prohibited following types of traps are pro-hibited:1. Traps that depend on moving parts to maintain the Bell Crown-vented Traps not integral with a fixture and that depend on inte-rior partitions for the seal, except those traps constructedof anapprovedmaterial that is resistant to corrosion S Drum :Drum traps used as solids interceptorsand drum traps serving chemical waste systems shallnot be Trap fixture trap shall have a liquid seal ofnot less than 2 inches (51 mm) and not more than 4 inches (102mm), or deeper for special designs relating to accessible fix-tures.

3 Where a trap seal is subject to loss by evaporation, a trapseal primer valve shall be installed. Trap seal primer valvesshall connect to the trap at a point above the level of the trapseal. A trap seal primer valve shall conform to ASSE 1018 orASSE Size of fixture trap size shall be suffi-cient to drain the fixture rapidly and not less than the size indi-cated in Table A trap shall not be larger than the drainagepipe into which the trap building (house) traps shall be prohib-ited, except where local conditions necessitate such traps shall be provided with a cleanout and a reliefvent or fresh air intake on the inlet side of the trap. The size ofthe relief vent or fresh air intake shall not be less than one-halfthe diameter of the drain to which the relief vent or air intakeconnects. Such relief vent or fresh air intake shall be carriedabove grade and shall be terminated in a screened outlet locatedoutside the Trap setting and shall be set levelwith respect to the trap seal and, where necessary, shall be pro-tected from Recess for trap recess provided for con-nection of the underground trap, such as one serving a bathtubin slab-type construction, shall have sides and a bottom of cor-rosion-resistant, insect- and verminproof Acid-resisting a vitrified clay or otherbrittleware, acid-resisting trap is installed underground, suchtrap shall be embedded in concrete extending 6 inches (152mm)

4 Beyond the bottom and sides of the Plumbing in mental health mental healthcenters, pipes and traps shall not be 1003 INTERCEPTORS AND Where and SEPARATORS shall beprovided to prevent the discharge of oil, grease, sand and othersubstances harmful or hazardous to the building drainage sys-tem, thepublic sewer,the private sewage disposal system or thesewage treatment plant or florida building code size, type and location of each intercep-tor and of each separator shall be approved by the plumbingofficial. Where the interceptor or separator is located within anonsite sewage treatment and disposal system, such interceptoror separator shall be approved by the health official. The inter-ceptor or separator shall be designed and installed in accor-dance with the manufacturer s instructions and therequirements of this section. Wastes that do not require treat-ment or separation shall not be discharged into any interceptoror Grease traps and grease INTERCEPTORS for publiclyowned or investor-owned sewage intercep-tors shall comply with the requirements of Sections Grease INTERCEPTORS and automatic greaseremoval devices grease interceptor or auto-matic grease removal device shall be required to receive thedrainage from fixtures and equipment with grease-ladenwaste located in food preparation areas, such as in restau-rants, hotel kitchens, hospitals, school kitchens, bars, fac-tory cafeterias and clubs.

5 Fixtures and equipment shallinclude pot sinks, prerinse sinks; soup kettles or similardevices; wok stations; floor drains or sinks into which ket-tles are drained; automatic hood wash units and dishwasherswithout prerinse sinks. Grease INTERCEPTORS and automaticgrease removal devices shall receive waste only from fix-tures and equipment that allow fats, oils or grease to be Food waste food waste grindersconnect to grease INTERCEPTORS , a solids interceptor shall sep-arate the discharge before connecting to the grease intercep-tor. Solids INTERCEPTORS and grease INTERCEPTORS shall be sizedand rated for the discharge of the food waste grinder. Emul-sifiers, chemicals, enzymes and bacteria shall not dischargeinto the food waste Grease INTERCEPTORS and automatic greaseremoval devices not grease interceptor or anautomatic grease removal device shall not be required forindividual dwelling units or any private living Grease INTERCEPTORS and automatic greaseremoval INTERCEPTORS and automatic greaseremoval devices shall be sized in accordance with PDIG101, ASME Appendix A, or Grease INTERCEPTORS and automatic greaseremoval devices shall be designed and tested in accordancewith PDI G101, ASME or ASME INTERCEPTORS and automatic grease removal devicesshall be installed in accordance with the manufacturer.

6 Grease INTERCEPTORS that are sized, con-structed and approved in accordance with Rule 64E-6, florida Administrative Codeand that are located outsidethe building shall not be required to meet the require-ments of this Grease interceptor inter-ceptors and grease traps shall have the grease retentioncapacity indicated in Table for theflow-through rates Rate of flow interceptorsand grease traps shall be equipped with devices to controlthe rate of water flow so that the water flow does notexceed the rated flow. The flow-control device shall bevented and terminate not less than 6 inches (152 mm)above the flood rim level or be installed in accordancewith the manufacturer s Automatic grease removal auto-matic grease removal devices are installed, such devicesshall be located downstream of each fixture or multiple fix-tures in accordance with the manufacturer s automatic grease removal device shall be sized topretreat the measured or calculated flows for all connectedfixtures or equipment.

7 Readyaccessshall be provided forinspection and Oil SEPARATORS repair garages, car-wash-ing facilities, at factories where oily and flammable liquidwastes are produced and in hydraulic elevator pits, separatorsshall be installed into which all oil-bearing, grease-bearing orflammable wastes shall be discharged before emptying into thebuilding drainage system or other point of :An oil separator is not required in hydraulic ele-vator pits where anapprovedalarm system is OF GREASE INTERCEPTORSaTOTAL FLOW-THROUGH RATING(gpm)GREASE RETENTION CAPACITY(pounds)486127149181020122414281 53018362040255035705010075150100200 For SI: 1 gallon per minute = L/m, 1 pound = For total flow-through ratings greater than 100 (gpm), double the flow-through rating to determine the grease retention capacity (pounds). Separation of mixture of treated oruntreated light and heavy liquids with various specific grav-ities shall be separated in florida building code PLUMBINGTRAPS, INTERCEPTORS AND Oil separator SEPARATORS shall bedesigned in accordance with Sections General design separa-tors shall have a depth of not less than 2 feet (610 mm)below the invert of the discharge drain.

8 The outlet open-ing of the separator shall have not less than an 18-inch(457 mm) water Garages and service auto-mobiles are serviced, greased, repaired or washed orwhere gasoline is dispensed, oil SEPARATORS shall have aminimum capacity of 6 cubic feet ( m3) for the first100 square feet ( m2) of area to be drained, plus 1cubic foot ( m3) for each additional 100 square feet( m2) of area to be drained into the separator. Parkinggarages in which servicing, repairing or washing is notconducted, and in which gasoline is not dispensed, shallnot require a separator. Areas of commercial garages uti-lized only for storage of automobiles are not required tobe drained through a Grease INTERCEPTORS for onsite sewage treatment anddisposal INTERCEPTORS are not required for aresidence. However, one or more grease INTERCEPTORS arerequired where grease waste is produced in quantities thatcould otherwise cause line stoppage or hinder sewage a grease interceptor is required or used, only kitchenwastewater shall first pass through the interceptor and then bedischarged into the first compartment of a septic tank or otherapproved system.

9 Grease INTERCEPTORS shall be water and gastight. Each interceptor shall be engineered to withstand theload, such as from vehicular traffic, to be placed on the Grease interceptor of greaseinterceptors shall be based on the equations of The minimum tank volume of grease interceptorsshall be 750 gallons (2839 L), and the maximum volume ofan individual grease interceptor chamber shall be 1,250 gal-lons (4731 L). When the required effective capacity of thegrease interceptor is greater than 1250 gallons, installationof multi-chambered grease INTERCEPTORS or grease intercep-tors in series is Construction of interceptorshall be constructed and approved in accordance with Rule64E-6, florida Administrative code . Minimum depth of theliquid shall be 40 inches (1016 mm). Each compartmentshall be accessible with a manhole having a minimum areaof 225 square inches. INTERCEPTORS must be located so as toprovide easy access for routine inspection, cleaning andmaintenance.

10 Manholes shall be provided over the inlet andoutlet of each interceptor and be brought to finished Inlet and outlet inlet invert shall dis-charge a minimum 21/2inches above the liquid level line andthe outlet pipe shall have a tee with a minimum diameter of 4inches that extends to within 8 inches of the bottom of thetank. The tee shall be installed with the run in the facilities not installed within anindividual dwelling unit or intended for individual family useshall be equipped with an interceptor with a wire basket or sim-ilar device, removable for cleaning, that prevents passage intothe drainage system of solids1/2inch ( mm) or larger insize, string, rags, buttons or other materials detrimental to thepublic sewage Bottling plants shall dis-charge process wastes into an interceptor that will provide forthe separation of broken glass or other solids before discharg-ing waste into the drainage room and dressingroom drains shall be equipped withapprovedseparators.