3 Steps for Grease Trap Installation

A grease trap installed on a pipe outside the home.
What You'll Need
Grease trap
Plumber's tools
Clean out tee

Grease trap installation does not require the help of a professional plumber, unless one lacks the basic skills needed. Nonetheless, a do-it-yourself grease trap installation can be a cost-effective way to preventing grease from creating clogs. A grease trap is a simple device that is designed to trap oils, fats, and wax in a container to prevent them from reaching the sewers and the drainage systems. Laws in most states, especially in restaurants and food preparation businesses, mandate the installation of a grease trap. It should be installed in an accessible location, to allow the owner to clean it occasionally. Here are three steps to follow in grease trap installation.

Step 1 – Determine the Size of the Grease Trap

Grease trap size will vary from one model to another. The size needed for a home or a business depends on the quantity of wastewater that usually passes on the drainage pipes. For restaurants that wash greasy dishes regularly, a grease trap with a capacity of 40 KG is best. For residential use, a grease trap with a smaller capacity is okay. However, if one wants to have a trap that won’t need cleaning for a longer period of time, a larger trap can be a good option.

Step 2 – Determine Where to Install the Grease Trap

The best location for grease trap installation is under the sink, but it can also be installed outside of the house. External grease trap installation is best for homes with several sinks because the drainage pipes can all be connected to the one common pipe and fitted to the grease trap.

Step 3 – Connect the Grease Trap

Installation will vary from one model to another. Read the manufacturer’s instructions to make sure a proper installation of your trap is done.

Normally, there are three connections on the device. One will be connected to the holding tank vent. This vent is purposely for flow control. Before connecting the device to it, plumbers recommend installing a clean out tee first. This will help clean out any debris that comes into the device. The second connection is designed to be connected to the sink or the source of wastewater. This is usually found on the left side of the device. Connect this after the vent connection. Lastly, secure the third connection to the pipe that leads to the sewage system, which is usually found on the lower right of the grease trap.

Tips and Reminders

Do not allow solid waste to go down the drain and into the grease trap. Make sure that the sink captures any solid matter that is washed off of dirty dishes. After washing greasy material down the drain, run hot water to help with the flow of grease.

Installing a grease trap is a preventive system and is a better way in keeping the pipes oil-free for a longer period of time than chemical decloggers.