Disposers

Disposers, commonly referred to as garbage disposals or waste disposals, are household appliances installed under a kitchen sink. They grind organic waste into small particles that can pass through plumbing to the sewer or septic system. Most units connect to a dedicated electrical outlet and are activated by a wall switch; some batch-feed models require the user to insert a stopper before operation. Two main types exist: continuous-feed, which runs while waste is added and the unit is on, and batch-feed, which operates only after the stopper is inserted.

Inside the grinding chamber, a motor-driven impeller disc or impellers fling waste against a grind ring, breaking it into small pieces. Water flow helps carry debris through the unit and into the drainage system. Typical residential models range from about 0.5 to 1 horsepower; commercial disposers are larger and designed for heavier use.

Benefits include reduced kitchen waste volume, fewer odors, and added convenience in everyday cleanup. Limitations include the need for electricity, potential jams or motor burnout if non-food items are disposed of, and the possibility of pipe clogs if fibrous materials, grease, or large bones are ground. Not all waste is suitable for disposal; hard or bulky items should be avoided, and some materials belong in the trash or compost.

Installation and maintenance considerations include ensuring compatibility with local codes, providing proper electrical and plumbing connections, and following manufacturer guidelines. Users are typically advised to run cold water during operation and to perform periodic cleaning to maintain performance and prevent odors.