Below are some of the benefits you get from regular grease trap cleaning.   Eliminates foul odors Grease trap cleaning gets rid of these odors and keeps your grease trap and tank working efficiently.   Reduces damage to the tank Any decaying food, whether solids or particles, releases and creates gasses. This includes sulfuric acid, which can damage the walls of the grease trap. Grease trap cleaning reduces damage to the tank before it creates a larger problem in the future.