Whatever the cause, a backed-up garbage disposal is usually easy to fix.

No plumber is needed, and you’ll have the sink flowing again in about 20 minutes.

Usechannel-bang out pliersto disconnect the slip-nut fittings on the drain trap, andremove the trap.

Sink with exposed garbage disposal

The Spruce / Sarah Lee

Carefully dump the contents of the trap into the bucket.

Have paper towels or rags nearby for any accidental spills.

Clean the Trap

Check for clogs or obstructions in the trap fitting.

Materials and tools to unclog a kitchen sink garbage disposal

The Spruce / Sarah Lee

The most effective way to remove debris is with a small scrub brush.

you’re free to also use a straightened coat hanger or other wire.

Loosen the slip nut where the arm meets the vertical branch drain and pull out the arm.

P-trap removed from kitchen drain pipe with bucket underneath to catch water

The Spruce / Sarah Lee

Clean inside the trap arm with a brush or wire.

Feed the auger cable into the branch drain from under the sink, turning the drum.

Pull the cable out and back through the drain a few times to be sure the clog is cleared.

Trap fitting in sink garbage disposal cleaned with small scrub brush and running water

The Spruce / Sarah Lee

Reassemble the Drain

Reinstall the trap arm and P-trap, tightening the slip nuts just snug.

Check the positions of the pieces and double-check the trap arm slopes downward slightly toward the branch drain.

Tighten the nuts by hand.

Trap arm in sink garbage disposal checked with yellow wire for clogs

The Spruce / Sarah Lee

If necessary, tighten them more with channel-punch in pliers, but do not over-tighten.

But what happensafterthe grinding can cause a clog.

Avoid the following to prevent the garbage disposal from clogging up:

A garbage disposal can clog pipes.

Branch drain in sink garbage disposal cleaned with drain snake

The Spruce / Sarah Lee

can clog the pipes.

Drano is safe to use in garbage disposals.

Removing the clog or dislodging it are recommended instead of Drano.

Blue drain snake held in front of under the sink pipes

If the dishwasher is clogged, you should not use the dishwasher.

If the dishwater is broken but isn’t clogged, you could use the dishwasher.

P-trap and trap arm reassembled on drain pipe with blue bucket underneath

The Spruce / Sarah Lee

Water running through flushed sink garbage disposal

The Spruce / Sarah Lee