Garbage Disposal Care & Repair

Your garbage disposal is designed for soft food scraps, not a garbage can. Do grind small amounts of leftovers, soft fruit and vegetable peels, and ice cubes (which clean the blades). Do always run cold water during and for 30 seconds after grinding to flush waste through the pipes. Do not put fibrous materials like celery, corn husks, artichokes, or banana peels down the disposal—they wrap around the grinding mechanism. Do not pour grease, oil, or fat down the drain. Do not grind bones, coffee grounds (they accumulate in traps), eggshells, pasta, rice, or potato peels (they create paste). Following these rules prevents 95% of disposal problems.

Monthly cleaning prevents odors and keeps the disposal operating efficiently. Drop 6–8 ice cubes into the chamber, add 1 tablespoon of baking soda and a few lemon peel strips, then run the disposal with cold water. The ice scours the grinding plate and the citrus freshens the chamber. For deep cleaning, pour ½ cup of white vinegar into the drain, let sit 5 minutes, then flush with boiling water. Remove and clean the rubber splash guard with a brush and mild soap. Check for leaks under the sink at the mounting ring and dishwasher connection. Tighten if needed.

When your disposal hums but does not grind, the grinding plate is jammed. First, turn off the wall switch. Find the hex-shaped hole at the bottom center of the unit. Insert a ¼-inch Allen wrench and rotate counterclockwise until the plate moves freely. Remove the wrench, press the red reset button, and turn the power back on. Run cold water and test. If the disposal still does not work, check the circuit breaker. If neither the reset nor the breaker resolves it, the motor may be burned out—this typically indicates end of life for the unit.

Disposal leaks occur at three common points: the top mounting gasket where it attaches to the sink, the side inlet where the dishwasher connects, and the bottom drain outlet. A top gasket leak usually means the mounting ring needs tightening or the rubber gasket has deteriorated. Tighten the three mounting bolts evenly. A dishwasher inlet leak requires replacing the rubber hose and clamp. A bottom drain leak often requires replacing the entire disposal because the housing seal is internal. If you see water dripping from the bottom of the unit, replacement is the only reliable fix—do not attempt to seal it with epoxy or tape.