Have you discovered a mysterious pool of water beneath your kitchen sink, or perhaps an unpleasant smell from the cabinet below? These could be telltale signs that your garbage disposal is leaking. Addressing the problem sooner rather than later is crucial, as a leaky garbage disposal can lead to mold, electrical hazards, and significant damage to your kitchen cabinets and flooring.

3 Reasons Why Your Garbage Disposal is Leaking

1. Internal Damage

If the leakage comes from the base of the garbage disposal unit, internal damage to the seals is likely the culprit. This is often a severe issue and may necessitate upgrading to a new system. Internal damage is a serious concern and usually requires the installation of a new unit. If the leak originates from the kitchen handle, it indicates a different issue.

2. Worn or Damaged Seals

Leaks from the top rim, where the rubber seal connects to the disposal flange, or from the upper region of the garbage disposal, suggest worn or damaged seals. Addressing this involves replacing the seal with plumber’s putty or replacing the gasket.

3. Loose or Improperly Installed Connections

Leaks due to loose drain lines are common, especially if the disposal leaks from the side. This can be fixed by tightening the clamps and connections.

Project Overview

Duration and Cost

Expect this project to take 30 minutes to an hour, with total costs under $10. This job requires an intermediate skill level.

Supplies Needed

Tools

• Wrench
• Pliers
• Screwdriver

Materials

• New gasket
• Plumber’s putty

How to Fix a Leaking Garbage Disposal

Garbage Disposal Leaking From the Top

1. Disconnect the drain and unplug the garbage disposal outlet. If you have a dishwasher, also remove the dishwasher drain.
2. Using a wrench, twist the mounting nuts at the top of the unit to remove the garbage disposal.
3. If the issue is with the flange, loosen its bolts and move the clip to pull the flange from the top of the sink.
4. Create a rope of plumber’s putty and generously apply it to the rim of the flange.
5. Re-insert the flange into the sink until snug. Reinstall the mounting assembly, mounting ring, and reattach the garbage disposal, drain pipe, and dishwasher hose.
6. Test for any leaks.

If a new gasket is required, remove the old gasket from the unit and place the new one in the same location. Reattach the parts and test for leaks.

Garbage Disposal Leaking From the Side

1. Tighten the metal clamp connecting the drain lines from the disposal to the dishwasher using a screwdriver.
2. Tighten the screws on the main drain line.
3. Ensure all connections are secure to prevent future leaks.

Garbage Disposal Leaking From the Bottom

1. If your garbage disposal is leaking from the bottom, especially from the reset button, it’s time to install a new unit.
2. A new garbage disposal typically lasts between eight to fifteen years.

How to Prevent Future Leaks

1. Proper Usage: Only grind soft foods and avoid hard items like bones, apple cores, potato skins, and eggshells.
2. Regular Cleaning: Clean your garbage disposal to get rid of unwanted smells by running cold water before and after disposing of food.
3. Avoid Chemical Cleaners: Use natural methods like baking soda and vinegar to clean the disposal.
4. Proper Maintenance: Don’t overload the unit and avoid chemical drain cleaners.

Mistakes to Avoid

1. Overloading the Unit: Do not overload the garbage disposal.
2. Using Chemical Cleaners: Avoid using chemical drain cleaners which can corrode pipes.

Environmentally Friendly Disposal Practices

1. Composting: Dispose of food scraps by composting.
2. Freezing Vegetable Scraps: Freeze vegetable scraps to make homemade vegetable broth.
3. Education: Educate everyone in your household about proper disposal practices.

FAQs

Do I need a plumber to fix a leaking garbage disposal?

Depending on the severity and cause of the leak, you may need a plumber. If you’re comfortable with DIY tasks and the issue is minor, you might be able to address it yourself.

How can I identify the source of the leak?

Leaks can occur for various reasons, such as loose connections, damaged pipes, a faulty seal, or a cracked disposal unit. To identify the source, visually inspect the disposal, sink connections, and pipes. Running water and observing where the leak occurs can also help pinpoint the source.

Hire a Tasker and Solve the Problem!

If you’re uncomfortable with the task or feel your skill set may not be a match, consider hiring a Tasker. Taskers have the experience to fix your leaky garbage disposal and assist with all your plumbing needs, ensuring a seamless return to a functioning kitchen without the hassle of tools or troubleshooting.