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Moen Solutions

My Disposal is Leaking-Existing Disposal

 
This article will help you determine the source of a leak on an existing Moen garbage disposal.
Leak Test
  1. Place sink stopper in sink and fill the sink with water.
  2. Wrap paper towels directly at the very top of the garbage disposal around the sink flange.
  3. Wrap paper towels around the drain discharge elbow on the side of the garbage disposal where it connects to the garbage disposer.
  4. Wrap paper towels around the dishwasher connector on the side of the garbage disposal where it connects to the dishwasher.
  5. Once you have wrapped all the necessary places, release the stopper and let the water drain.
  6. Check all of the paper towels to see if they are wet. If any are wet, the leak is coming from that area and is caused by an issue with the installation of that specific item.
Where Do You See Water?
Leak Around the Top of the Garbage Disposal 

top leak.png

Leaking around the top of a garbage disposal is usually caused by one of the following.

Deterioration- Inspect the mounting hardware, rubber or fiber gasket, and cushion mount for any damage or deterioration and replace if necessary. Any one of these items could cause leaking

Loose Screws- Verify that the mounting assembly screws have not loosened.

Worn Sealant- If the sealant is worn down then it won't seal properly and will need to be replaced with new sealant.

breakdown.png 1- Sink Flange
2- Rubber or Fiber Gasket
3- Cushion Mount
Leak Around the Middle of the Garbage Disposal 

middle leak.png

First ensure that the water is not leaking from the top of the garbage disposal and dripping down. Below are other potential reasons for a leak.

Dishwasher Connector- Inspect the dishwasher connector or dishwasher clamp for any damage or deterioration and replace if necessary. They need to be tight.

Drain discharge elbow:

  • Loose screws- Tighten any loose screws on the drain discharge elbow.
  • Dishwasher discharge elbow gasket- Check for any damage or deterioration and replace if necessary.

Drain Discharge Elbow:

drain discharge gasket 2.png

1- Drain Discharge Elbow Gasket

Leak Underneath of the Garbage Disposal 

bottom leak.png

Leaking on the outside of garbage disposal housing:

Dishwasher Connector- Inspect the dishwasher connector or dishwasher clamp for any damage or deterioration and replace if necessary. They need to be tight.

Leaking from the metal plate on the bottom of the garbage disposal:

Drain discharge elbow:

  • Loose screws- Tighten any loose screws on the drain discharge elbow.

Drain Discharge Elbow Gasket- If the drain discharge gasket is damaged, water can travel down in between the shell and the garbage disposal and drain out by the cover plate on the bottom.

Drain Discharge Elbow:

drain discharge gasket.png

1- Drain Discharge Elbow Gasket

 

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