Plumbway Blog


Learn About Grease Traps and How to Dispose of their Waste

A grease trap is a device that is required by law in every restaurant, cafeteria, catering operation and any other commercial cooking facility. It prevents fats, oils, wax and other debris from falling into the city’s sanitary sewer system, which helps prevent blockage and overflows that often occur if such things enter the system. A grease trap must be accessible so you can clean it out, but you do not need to clean out a trap in your home as frequently as one in a restaurant.

Usually, grease traps look like boxes or barrels, which are connected to the sewage system. A grease trap is located somewhere before the point where the drain pipes meets the common sewage system and is not connected to any other drainage, like those from toilets. Only wastewater containing grease, flow through these grease traps. Grease traps can be made of plastic, stainless steel, iron, concrete, etc. and can be placed inside or outside a building. It can be placed underground or above the ground level. The wastewater, which enters the grease tank, cools down to form an oily layer in the top, allowing the water to settle at the bottom. An exit pipe, which is attached to the base of the grease trap helps remove the water, while the grease remains enclosed at the top. The grease which is accumulated is called brown grease, which requires appropriate disposal methods. This grease can also be recycled to produce biofuel.

As a grease trap is used to filter out oils and fats, there are chances of grease build up in the device. This can affect the efficiency of the device, which can lead to a blockage of wastewater, foul smell, etc. Apart from that, large quantities of grease can land up in the common sewage system, which can attract fines too. Hence, regular cleaning and maintenance of grease traps is necessary.


Ministry of the Environment Certification:

Did you know that if you are disposing of Grease Trap waste you need to have a company with a Certificate of Approval for a Waste Management System? Look no further! Plumbway is an approved Waste Hauler with the Ministry of the Environment (Certificate of Approval Number 8909-8AXPWG) and our company provides grease trap cleaning services throughout Niagara – Hamilton – GTA- Golden Horseshoe areas.

You can also prevent the buildup of grease in the grease trap by adding bacteria additives. These bacteria can break down the waste biologically, leaving behind only carbon dioxide and water. This can reduce the number of clean ups. Hot water flushes and enzyme only products should be avoided, as both can liquefy the grease and allow it to enter the sewage system.

For more information on grease traps and service, call Plumbway today or request an appointment online!


City of Hamilton: Fats, Oils and Grease Management Program
Ontario Ministry of the Environment: Environmental Approvals



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