How to Clean Grease Trap

To clean a grease trap there are several steps to efficiently clean and maintain to be in compliance with regulations.

Grease has become a major contributor to the breakdown of our sewer systems and now compliance is necessary to avoid large fines.

Improper grease disposal can lead to a citation that carries a fine of $1000 or more, so it is important to manage your waste grease appropriately and to regularly clean your grease trap in order to avoid an overflow

Steps to clean grease trap

  1. Explain that fats, oils and grease (FOG) are a problem when washed down drains, because they can clog the sewers and create overflows.
  2. Post Proper Disposal of Fats, Oils and Grease Best Management Practices (BMPs) signs near sinks and dishwashers.
  3. Install/use removable drain screens in all sink drains (floor sink drains, kitchen sinks, mop sinks and hand sinks) to capture solid materials. The screen openings should be 1/8” to 3/16” and removable to make the screen easy to clean. Adding a second screen can help prevent solid materials from entering the sewer when cleaning the first screen.
  4. Recycle used cooking oil and grease by collecting and storing in a recycling barrel or bin. 
  5. Block off sinks and floor drains near any FOG related spill and clean up using absorbent materials, such as absorbent sweep, cat litter or paper towels. 
  6. Prevent outdoor spills and overflows from entering the storm drain by creating a barrier using dirt, cat litter or other absorbent material to contain the overflow until all grease is cleaned. Call the local sewer agency as soon as possible.
  7.  When possible, witness all cleaning and maintenance of outdoor grease interceptors to ensure the device is properly serviced (see Grease Interceptor Maintenance instruction sheet). Manual indoor grease traps should be cleaned weekly at minimum, or daily depending on the use of BMPs, number of customers and type of food served. Clean indoor automatic grease traps daily (see Grease Trap Maintenance instruction sheet).


It helps to have a good degreaser to breakdown fats oils and grease or commonly known as FOG

FOG can be broken down with a sodium percarbonate product that produces highly radical forms of hydrogen peroxide.

Simix Solutions a nano tech company involved in nano cleaners and nano ceramic coatings has come up with an excellent way to not only clean and breakdown grease in grease traps but the same economical product can be used on all areas of your restaurant from floors to countertops.


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