Establish a grease trap/interceptor cleaning frequency and manifest recordkeeping practice that satisfies typical FOG program requirements

Steps

1. Check the local sewer-use/FOG ordinance for a mandated minimum cleaning frequency (commonly monthly for smaller indoor hydromechanical units and quarterly for larger outdoor gravity interceptors), since specific intervals are set locally and vary widely
2. Layer the jurisdiction's percentage-based trigger (commonly around 25% of liquid depth, see separate rule) on top of the fixed calendar minimum — service whichever comes first
3. Contract only with a hauler holding the required local/state registration or permit to transport grease trap waste
4. Require the hauler to leave a manifest or trip ticket for every service documenting the date, hauler identity/permit number, and approximate volume/waste removed
5. Retain manifests/logs on-site for the retention period specified by the local ordinance (commonly in the range of two to three years) and make them available on demand to inspectors
6. Adopt kitchen-level best management practices — scraping plates/pans before washing, dry-wiping cookware, and never using hot water, caustics, solvents, or emulsifying agents to clean the interceptor — to reduce required cleaning frequency and avoid emulsifying FOG into a form that passes through the device