The disposal of fats, oils, and grease (FOG) into sanitary sewer lines is a major contributor to the clogging of the sanitary sewer system.
Most FOG does not mix well with water and floats on top of the water clinging to the top of the sewer lines. Then when subsequent fats, oils, and grease flows down a line it will eventually clog.
Even a small amount of FOG in drains can cause a serious and expensive blockage and may cause an overflow in the home or community. In addition to the damage fats, oils, and grease may cause to the sanitary sewer lines, it is a primary source of sewer odors, both inside a building and from a sewer line in the street.
Fats, oils, and grease should not be disposed of in a sink, including those outfitted with a garbage disposal, or a lavatory. They should be disposed of properly by placing them into a container and placing it in the garbage container for pickup.
For additional information on fats, oils, and grease, please visit eliminating fats, oils and grease from our sewers.