A garbage disposal usually smells bad because bits of food have built up inside the unit, on the rubber splash guard or in the drain below it. Less often, the smell can come from a drain problem farther down the line or a slow leak under the sink.
A smelly disposal is common, especially in busy kitchens. Most of the time it points to buildup rather than a broken unit. But if the smell keeps coming back, it may be a sign that food or water is not moving through the drain the way it should.
Where the Smell Usually Comes From
Food can collect in a few places in and around a disposal:
- under the rubber splash guard at the top of the drain opening
- inside the grinding chamber, where small pieces can stick to the walls
- in the drain line below the disposal, if water does not carry food all the way through
- in a dishwasher drain hose that connects to the disposal, in some kitchens
Grease is a common contributor. It can coat the inside of the unit and the pipe, giving food a place to cling and break down.
When the Smell May Point to Something Else
A smell that will not go away even after cleaning may be linked to other causes. Water may be sitting in the drain because of a partial blockage. A slow leak under the sink can leave damp, musty spots in the cabinet. In some cases, odors may come from the drain system instead of the disposal.
If you see water under the sink, hear gurgling, or notice the sink draining slowly, mention those signs to a plumber. They may say more about the cause than the smell alone.
Safe Habits That Can Help
Run cold water before, during and after using the disposal, so food is carried through the drain. Feed food in small amounts instead of all at once. Keep grease, oil and fat out of the sink.
Never put your hand into the disposal, even when it is off. Do not pour harsh chemical drain cleaners into it, and never mix cleaning products. With the disposal switched off, the rubber splash guard can be wiped with soap and water from above. If the smell does not improve, it is better to have the unit checked than to keep adding products.
Disposals in Apartment Buildings
In Bronx apartment buildings, kitchen drains may connect to lines that serve other units. If a smell comes with slow draining or backups, tell the super or property manager. Some buildings also have rules about disposals, so renters should check before replacing one.
If a bad smell from your disposal keeps coming back, our garbage disposal repair service can check the unit and the drain below it. Call (929) 209-6183 to set up a visit in the Bronx.
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