Garbage Disposal Leaking
Water dripping from your garbage disposal can come from several connection points. Identifying where the leak originates determines whether it's a simple tightening job or a replacement.
Step-by-Step Troubleshooting
Try these fixes before calling a technician
Identify the leak location
Place a dry paper towel under the disposal and run water to identify where the drip is coming from. The three common leak points are: the top (sink flange), the side (dishwasher connection), or the bottom (internal seal).
Top leak — tighten the mounting ring
A leak from the top means the connection between the sink drain and the disposal is loose. Tighten the mounting ring that holds the disposal to the sink. If the putty seal (between the flange and sink) has dried out, you'll need to reseal it with plumber's putty.
Side leak — check the dishwasher hose
The dishwasher drain hose connects to a small inlet on the side of the disposal. Check that the hose clamp is tight and the hose isn't cracked. Replace the clamp or hose if needed.
Bottom leak — internal seal failure
A leak from the bottom of the disposal means the internal seal has failed. Unfortunately, internal seals are not replaceable — the entire disposal needs to be replaced. This is the most common reason for disposal leaks in units older than 8-10 years.
When to Call a Professional
Bottom leaks always require replacement. For top and side leaks, if tightening the connections doesn't work, a technician can reseal the sink flange or replace damaged fittings. Disposal replacement is quick — typically under an hour.
West Metro Appliance Repair has completed 25 garbage disposal repairs across 70+ Twin Cities communities. Our technicians see this exact problem regularly and can diagnose it quickly.
More Garbage disposal Troubleshooting
Garbage disposal Repair Service
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