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Why Is My Garbage Disposal Leaking?

As a homeowner, a leaky garbage disposal is more than just an annoyance. It can also lead to significant water damage and mold growth over time.

Often, these leaks occur due to worn seals, cracked housing, loose connections, or deteriorated gaskets. In Birmingham, our hard water, older plumbing systems, and under-sink corrosion can also increase the likelihood of leaks.

Quick Takeaways

  • Homeowner dealing with leaking garbage disposalIn most cases, garbage disposals leak because of a loose connection or worn seal.
  • When a leak occurs on the bottom, it indicates that an internal seal has failed.
  • Leaks on the sides or top are often due to gaskets or flanges.
  • The place where the drain line and dishwasher connection meet is a frequent leak location.
  • While you can tighten a loose connection, internal leaks often necessitate a full replacement.
  • Cracked housing is a sign that the entire disposal must be replaced.

Where Is the Leak Coming From?

The leak’s location matters because it determines the cause and solution.

Leaking From the Bottom of the Disposal

A leak at the bottom is the most serious location. It typically means an internal seal has failed, so the entire unit will need to be replaced. In this type of situation, tightening a few bolts won’t solve the problem.

Leaking From the Top

Leaks that occur on the top often happen because the plumber’s putty or mounting gasket has failed. Alternatively, our plumbers sometimes notice this symptom if the mounting assembly has managed to become loose.

Leaking From the Side

Meanwhile, side leaks may be due to a loose inlet hose, cracked housing, or worn side gasket.

Leaking From the Drain Line Connection

If the leak occurs around the drain connection, it may be due to loose discharge tube bolts or a worn gasket. While loose bolts can be easily tightened, the gaskets must be replaced.

What Causes Garbage Disposal Leaks?

At Benjamin Franklin Plumbing, we’ve seen leaks occur for a range of different reasons.

  • Plumber repairing faulty garbage disposalCorrosion: Over time, corrosion from hard water can weaken plumbing components and fittings.
  • Age: As the garbage disposal grows older, seals can deteriorate.
  • Installation Quality: A poor installation is more likely to need repairs.
  • Vibration: When there is too much vibration, it can loosen the fittings.
  • Damaged Chambers: If the internal chamber becomes cracked, a leak can occur.
  • Foreign Objects: Any foreign objects in the garbage disposal can cause damage to the unit.

Is a Leaking Garbage Disposal Dangerous?

A leaking garbage disposal can lead to standing water. In turn, this can cause mold growth, cabinet damage, and potential electrical risks. By addressing this problem early, you can avoid these issues.

Can You Fix a Leaking Garbage Disposal Yourself?

While you may be able to tighten fittings and perform basic repairs on your own, an internal failure shouldn’t be handled on your own. For complex repairs and any repairs requiring electrical work, you should turn to a professional for assistance.

When To Repair vs. Replace Your Garbage Disposal

If you are uncertain about whether you ought to repair or replace your garbage disposal, there are a few factors you should keep in mind.

  • Age: Once a garbage disposal reaches 8 to 12 years old, it is already near the end of its average lifespan. At this point, a replacement is generally the best option.
  • Internal Seal Failures: If the seal fails, you should get the disposal replaced.
  • Cracked Housing: Cracked housing cannot be repaired.
  • Connection Leaks: When minor connection leaks are involved, a basic repair is all you need to do.

FAQs

Why is my garbage disposal leaking from the bottom?

If the bottom has rusted through or an internal seal has failed, water can escape. When this happens, the only option is to replace the entire unit.

Can I still use my garbage disposal if it’s leaking?

While it may be possible to still use the garbage disposal, it isn’t a good idea. Anytime water and electricity are both present, it creates a major electrical risk.

Is it better to repair or replace a leaking disposal?

It all depends on what the cause of the problem is. If a repair is cheaper and more effective, we will repair it. For complex or expensive problems, a replacement may be the best choice.

How much damage can a leaking disposal cause?

Left untreated, a leaking disposal can cause damage to your flooring and cabinets. It can also result in major mold growth and unpleasant odors.

Should I turn off the power if my disposal is leaking?

Absolutely. Otherwise, there is a risk of electric shock.

Solve Your Disposal Issues With Benjamin Franklin Plumbing

Benjamin Franklin Plumbing logo. The punctual plumberIf your garbage disposal is leaking, you can’t afford to wait. A small drip can quickly escalate into major electrical risks, mold growth, and cabinet damage.

At Benjamin Franklin Plumbing, our experienced plumbers can help you diagnose the root cause of the problem. From loose connections to seal failures, we can help Birmingham homeowners find effective solutions to their garbage disposal issues.

To learn more about how to deal with a leaky garbage disposal, call our punctual plumbers today.