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Proper Grease Disposal Practices

In an effort to midigate sewer and plumbing blockage, RMWD asks its customers to use best management practices when disposing of grease. 

May contain: plant, person, human, produce, and food

Common Problem: Approximately 60% of all sewer blockage is caused by grease in the system. Hot drippings may be in liquid form when poured down the drain but the liquid will solidify like candle wax once it cools down inside the pipes. Even mixing grease with warm soapy water does not prevent clogs.

Easy Solution: Rainbow MWD has adopted Administrative Code Section 9.12 regulating commercial kitchen grease disposal; however, a review of those areas that do experience blockage problems reveals many of them are in residential areas. Residents should always use proper grease disposal techniques as .follows:

  • Never put any type of grease or oil, whether it’s frying oil, salad oil, or cooking grease, into the sewage system by dumping it down the sink.
  • Put excess cooking oil or grease into a container and throw it in the trash.
  • Wipe out greasy pots and pans with a paper towel before washing them. Do not use the garbage disposal to grind fat trimmings instead wrap them up and put them in the trash,

The District thanks you for your efforts in protecting and preserving the environment and our plumbing and sewer systems.