Grease Trap Maintenance

Grease Traps Can Clog Your Business

Grease traps can be the single biggest hassle for restaurants and commercial kitchens if not cleaned regularly. Grease trap maintenance performed on a routine schedule keeps drains flowing smoothly… preventing costly back-ups and keeping your business up and running. 

Grease Masters trained technicians are experts at grease trap maintenance and perform over 11,000 services annually.

No job is too small or too big … single-visit pumping capabilities up to 10,000 gallons. Here’s what you can expect from our step-by-step process to clean and maintain grease traps.

  • Drain the tank of grease wastes (internal and external grease traps)
  • Clean and inspect all baffles
  • Run a thorough system test to ensure all waste water is flowing properly
  • Dispose of all material pumped from the grease traps in an environmentally safe way through the St. Louis Metropolitan Sewer District

How can I stay compliant?

Most municipalities require monthly grease trap maintenance or cleaning. Depending on the trap size and your business volume, more frequent service may be necessary. MSD, Local Municipal Sewer Districts, Local Health Boards, and Environmental Regulations have specific requirements for compliance. Our job is to help you maintain compliance, without business interruption.


What should I do to help keep my grease trap running at top performance?

  • Schedule regular grease trap maintenance
  • Make sure that food prep and wash sinks are tied into a trap
  • Ensure that your trap is properly sized
  • Train your staff to remove as much waste and food solids as possible from plates and pots before washing
  • Maintain a cleaning log for code compliance. 

What NOT to do

  • DO NOT pour boiling water into a trap connected sink as it liquefies the FOG and forces it into the sewer pipe.
  • DO NOT connect garbage disposals to a trap.
  • DO NOT connect high-temperature dishwashers to a trap.
  • DO NOT put chemicals, bleach, additives, or drain cleaners into a trap – these destroy naturally beneficial bacteria and risk harm to the environment.

Should I use biological agents, enzymes, or bugs to help maintain my grease trap?

  • Don’t be fooled by companies that want to dispense a biological agent into your grease trap! It is not necessary and is costly.
  • Using biological agents, enzymes, or bugs emulsifies the grease, allowing it to pass through the grease trap and into your sewer line.
  • Grease then solidifies and adheres to that very line, past your grease trap.
  • This will clog your outgoing sewer line, causing costly backups and major repairs.

Companies offering to treat your grease traps with enzymes inject chemicals into the trap and then scoop off the top layer of grease. This leaves solids at the bottom of the trap, causing them to rot and giving off a pungent, unpleasant odor that can make its way into all areas of your business or operation. Leaving solids in the bottom of the trap will deteriorate the grease trap, leaving you with costly repairs and replacements.

The ordinances in the Metro St. Louis Area state that if enzymes or bugs are used grease traps must still be pumped on a regular schedule.


Proper Disposal

As standard practice of grease trap maintenance Grease Masters disposes of your waste at the Metropolitan St. Louis Sewer District Hauled Waste Receiving Station at Grand Ave and Hall St in St. Louis. This station is the ONLY U.S. EPA licensed disposal facility within 100 miles of St. Louis for grease disposal.

Avoid the chance of illegal disposal. Our cradle-to-grave chain of custody ensures you will remain in compliance. When you use a waste hauler that cannot guarantee the process we follow, you put yourself great risk for significant fines and expensive clean-up costs.

Want to know more about grease traps? The Metropolitan St. Louis Sewer District
provides information on grease trap maintenance.

All food service facility owners or operators are required to document their grease management efforts, including the cleaning and repair frequency for grease removal devices and grease disposal methods.

Maintenance records should be kept on-site in an easily accessible location and must be made available for inspection and copying upon request by your local officials. You are required to keep maintenance documentation for a period of no less than three years.

Why Choose


Our Cleaning Will Pass All Inspections. Guaranteed.
Grease Masters highly trained technicians use the most advanced process to ensure you’ll meet all local regulations.
Your Schedule Is Our Schedule
All work is scheduled and performed at the time best for your operation. We’ll be on time and provide expert service.
One Call For All Services
Grease Masters is one-stop shopping for used cooking oil removal, hydrovac services, exhaust hood cleaning, grease trap cleaning, sewer and drain cleaning, and plumbing repairs.