Protect your restaurant or commercial food facility against costly sewer backups, foul odors, and severe municipal fines. We engineer, install, replace, and hydro jet point-of-use hydromechanical grease traps and large in-ground gravity interceptors to keep you 100% compliant with Peninsula FOG regulations.
Commercial kitchens generate immense volumes of fats, oils, and grease (FOG) alongside hot dishwater, food solids, and heavy detergents. When hot, emulsified grease enters drainage piping, it cools rapidly and coats interior pipe walls, gradually congealing into rock-hard mineralized grease deposits. Across the San Francisco Peninsula, municipal wastewater authorities (including San Mateo County Environmental Health, City of San Jose, Palo Alto, and local sanitary districts) enforce stringent zero-tolerance FOG ordinances. Uncontained grease that reaches municipal sewer mains causes catastrophic backups, sewer spills into San Francisco Bay, and immediate health department closures with escalating penalties.
Effective grease management requires engineered separation tailored to your kitchen's specific flow velocity and equipment layout. Point-of-use Hydromechanical Grease Interceptors (HGIs)—compact units installed under commercial three-compartment sinks or recessed flush into kitchen tile floors—utilize flow control diffusers, air entrainment, and internal baffling to slow wastewater velocity and allow low-density grease to separate to the surface before reaching the sewer. For high-volume restaurants, cafeterias, and food production plants, high-capacity exterior Gravity Grease Interceptors (GGIs)—ranging from 750 to 2,500+ gallons in underground precast concrete or poly vaults—provide the hydraulic retention time necessary to handle peak commercial dinner services.
Daso Plumbing provides complete commercial kitchen plumbing and compliance support. From sizing and installing modern corrosion-resistant thermoplastic interceptors (such as Schier and Endura) for new restaurant tenant improvements to replacing collapsed concrete grease vaults, we handle all engineering, health department plans, and building permits. When grease lines back up during rush service, our high-pressure commercial hydro-jetting equipment scours kitchen laterals clean from the trap directly to the street main.
Turnkey installation of point-of-use indoor grease interceptors engineered for commercial kitchens, cafes, and bakeries.
Heavy-duty 750 to 2,500+ gallon exterior underground interceptor installation and replacement for high-volume restaurants and commissaries.
Industrial thermal and high-pressure water jetting to emulsify and purge hardened grease scale from commercial kitchen drain lines.
Bringing non-compliant food facilities up to code with official monitoring access and required health department equipment.
Dedicated grease waste and vent piping rough-in for new restaurant tenant improvements and commissary expansions.
Scheduled maintenance programs to maintain grease separation efficiency and prevent unexpected kitchen downtime.
Photographed on Peninsula jobs by the crews who did the work.
Our licensed crews operate from Belmont, dispatching fully equipped service vehicles to residential and commercial properties throughout San Mateo and Santa Clara counties.
Send the scope, the address, or just the problem. A licensed plumber reviews it and comes back with a written price — not a range.
