Just as fat accumulates and causes blockages in human arteries, oil and grease solidifies and accumulates in household pipes, restricting the flow of wastewater and causing sewer backups and overflows.
How it starts: Fats, oils, and grease (FOG) separates from other liquids as it goes down your drain. The FOG cools and sticks to household pipes and sewer pipes.
A matter of time: Over time, pipes become clogged and sewage flow becomes restricted.
Nowhere to go but back: The clogged pipe eventually backs up and floods your home with wastewater. Or it causes it to overflow onto the street.
Why is FOG a problem?
Fats, oils, and great (FOG), combined with tree roots in the sewer system, can create massive, cement-like clogs which cause more than half of the Sacramento Area Sewer District’s sewer backups and overflows. When put down the kitchen drain, FOG causes sewer problems that can result in: