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Loosen and Remove the Mounting Ring — Remove the Garbage Disposal Unit

Beginner6 hours

Part of project

How to Replace a Garbage Disposal and Install a Standard Sink Drain · Step 3 of 7

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In this video

The video demonstrates how the garbage disposal is attached to the sink flange. A metal locking ring is positioned over three hooks on the flange. To secure the unit, this ring is rotated, causing it to ride up angled ramps and tighten. To remove the unit, you must reverse this process. Insert a flathead screwdriver into one of the lugs on the locking ring. While firmly supporting the weight of the disposal, apply rotational force to the screwdriver to turn the ring counter-clockwise. As the ring turns, it will disengage from the hooks, allowing the entire disposal unit to be lowered straight down and removed from the mounting assembly.

Goal: Detach the Garbage Disposal Unit

  • Be prepared to support the full weight of the disposal as soon as the ring is loosened, as it will drop down once it's free from the mounting hooks.
  • If the ring is difficult to turn, a light tap on the end of the screwdriver with a hammer can help break it free from any built-up grime or corrosion.

Used in this video

  • Screwdriver (brand: Not specified, Tool Type: Screwdriver, Handle Type: Flathead, Length: Medium)To provide leverage to turn and loosen the garbage disposal mounting ring.
  • Protective Gloves (brand: Not specified, Material: Nitrile, Special Features: Chemical-resistant)To protect hands and improve grip while working under the sink.
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FAQs

Is this project truly beginner-friendly, and what's the biggest challenge for a DIYer who hasn't done plumbing before?

Yes, this project is rated as beginner-friendly, primarily involving basic connections and hand tools. The biggest challenge often lies in ensuring all new PVC connections are properly tightened and sealed to prevent leaks, which requires careful application of plumber's putty and snugging fittings without overtightening. Patience and methodical testing are key to success.

The tool list includes several specific screwdrivers and pliers; are all of them absolutely necessary, or can I get by with fewer?

While the Channellock pliers are highly recommended for their grip and leverage on stubborn nuts and pipes, having a range of slotted screwdrivers is crucial for different screw types on the disposal's mounting assembly and hose clamps. A putty knife is also essential for correctly applying plumber's putty for a leak-free seal. Having the right tools prevents stripping screws and makes the job smoother.

What are the most common mistakes people make when replacing a disposal with a standard drain, and how can I avoid leaks?

The most common mistakes are not properly sealing the sink strainer with plumber's putty and overtightening PVC connections, which can lead to cracks. To prevent leaks, apply a generous, even bead of Oatey Plumber's Putty under the sink strainer flange. For PVC, hand-tighten nuts first, then use pliers for a final quarter-turn, ensuring all washers are seated correctly. Always fill the sink and test thoroughly for leaks before concluding the project.

My dishwasher drains into the disposal; how do I ensure it drains correctly after removing the disposal and installing a new drain?

You'll need to reconnect the dishwasher drain hose to the dedicated branch on your new sink drain assembly, such as the one included in the SnappyTrap DK-110 kit for double bowls. Secure the hose firmly with a new stainless steel hose clamp, like the Everbilt 5-7 in. clamp, to ensure a tight, leak-free connection. This ensures your dishwasher continues to drain properly into the new standard drain setup.

Loosen and Remove the Mounting Ring — How to Replace a Garbage Disposal and Install a Standard Sink Drain (Step 3, Video 1) | Stesso