Greasetrap cleaning

Interceptor venting must be connected to the building waste vent piping in accordance with the JCW accepted unit detail and the plumbing code.

Greasetrap

Grease interceptors are required for all Food Service Establishments (FSEs) that do not qualify for a Low Grease Discharge Waiver (LGDW).

For all new interceptors and replacements, provide sizing calculations (sealed by a Kansas PE) using the Drainage Fixture Units (DFUs) connected to the gravity interceptor in accordance with JCW grease waste plumbing standards and in correlation with 2015 IPC and 2015 UPC criteria and size the interceptor as follows:

Greasetrap service

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Only Hydromechanical Grease Interceptor (HGI) units accepted by JCW may be permitted and used for new installations and replacements in JCW’s service area.

GreaseTraps for commercial kitchens

Only Non-concrete Gravity Interceptor (NCGGI) Units accepted by JCW may be permitted and used for new installations and replacements in JCW’s service area.

Gravity interceptor volume shall be sized using the calculated DFUs and the following Gravity Grease Interceptor Volumes table (Table 8-2 from the ASPE Plumbing Engineering Design Handbook, Volume 4. (C) 2016, reprinted with permission from the American Society of Plumbing Engineers. All rights reserved.) with 1000 gal minimum and 2000 gal maximum:

Where DFUs for a future FSE(s) are unknown, the interceptor shall be sized based on the maximum DFUs allowed for the pipe size (per UPC Table 703.2) connected to inlet of the interceptor. An inlet pipe size of 4 inches corresponds with up to 216 DFUs and a 2000 gallon interceptor. If the pipe size and corresponding number of DFUs may exceed 216, please contact JCW to discuss options.

For a standard concrete gravity grease interceptor, use JCW's standard detail and modify the detail to reflect the required volume and piping arrangement for the project.