Indoor Grease Traps Explained: What Restaurant Owners Need to Know

What Is an Indoor Grease Trap?

An indoor grease trap is a plumbing device designed to intercept fats, oils, and grease (FOG) before they enter your sewer system. These units are typically installed under sinks or in floor drains inside restaurants, commercial kitchens, and food-service facilities.

Unlike outdoor grease interceptors, indoor grease traps are smaller, more sensitive, and require more frequent maintenance.

Why Indoor Grease Traps Matter

When grease builds up, it doesn’t just cause slow drains. It can lead to:

  • Sewer backups

  • Foul kitchen odors

  • Health department violations

  • Emergency plumbing repairs

  • Business interruptions

Most municipalities require indoor grease traps to be cleaned on a regular schedule, often every 30–90 days depending on usage.

How Indoor Grease Traps Work

Grease traps slow wastewater flow, allowing grease to float to the top while solids sink. Cleaner water exits through an outlet pipe. Over time, grease and solids accumulate and must be professionally removed.

Signs Your Grease Trap Needs Cleaning

  • Persistent odors near sinks

  • Slow draining water

  • Grease visible in drains

  • Health inspector warnings

  • Increased plumbing issues

Ignoring these signs can lead to fines or forced shutdowns.

Why Professional Cleaning Is Essential

DIY cleaning often leads to improper disposal, incomplete cleaning, or damage to the unit. Professional grease trap cleaning ensures:

  • Complete grease and solids removal

  • Proper disposal per regulations

  • Detailed service records for inspections

  • Odor control and system longevity

Why Restaurants Choose Regenuco

Regenuco specializes in indoor grease trap cleaning only, ensuring technicians are trained specifically for these systems. We work quietly, cleanly, and around your operating hours.

Logan Moskovitz