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Reinstall Mounting Bracket — Remove Sink Flange

Beginner6 hours

Part of project

How to Remove a Garbage Disposal and Install a Standard Sink Drain · Step 5 of 9

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In this video

To reinstall the mounting assembly, first apply a rope of plumber's putty around the underside of the new strainer flange, or use an upper sink flange seal. Insert the flange into the sink drain opening. From underneath the sink, place the lower sink flange seal and the flange mounting plate over the strainer flange. Position the mounting bracket against the plate and hold it up while you snap the mounting ring into the groove on the strainer flange. Evenly tighten the three screws on the bracket to secure the assembly. Scrape away any excess plumber's putty from inside the sink.

Goal: Garbage Disposal Installation

Used in this video

  • Flat-Head Screwdriver (Tool Type: Hand Tools)Tightening the three mounting bracket screws.
  • Putty Knife or Scraper (Tool Type: Cleaning Tool) · optionalRemoving excess plumber's putty.
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FAQs

Is this project truly beginner-friendly, and how much time should I realistically set aside?

Yes, it is designed for beginners. While the steps are straightforward, you should allocate the full estimated 6 hours. This allows ample time for prep, unexpected issues, and thorough leak testing, which is crucial for a successful outcome.

What are the most critical safety precautions I need to take before starting this project?

Your top priority is safety: immediately turn off the electrical power to the disposal at your circuit breaker and shut off the hot and cold water supply valves under the sink. Always wear safety gloves to protect your hands from sharp edges, old grime, and potential chemical exposure during cleaning.

Do I really need all the specialized tools listed, like the basket strainer wrench, or can I get by with standard tools?

While basic tools are essential, a basket strainer wrench (e.g., Husky 16PL0141) is highly recommended. It significantly simplifies removing the old and installing the new sink strainer, ensuring a tighter seal and preventing damage that can occur with improvised tools.

What's the most common problem people encounter when switching from a disposal to a standard drain, and how can I avoid it?

The most common issue is leaks, especially around the new sink strainer and drain pipe connections. To avoid this, apply a generous, continuous bead of plumber's putty (like Oatey 311662) under the new strainer flange and ensure all new drain connections are snug, using slip-joint pliers without overtightening.