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Reassemble the Drain Mechanism — Install and Adjust New Stopper and Linkage

Beginner5 hours

Part of project

How to Replace a Pop-up Bathtub Drain and Overflow Assembly · Step 7 of 8

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In this video

Insert the clean stopper back into the drain, making sure that the hole in the bottom of the stopper is facing towards the back of the sink. From underneath, slide the pivot rod back into its opening, ensuring it passes through the hole in the stopper. Hand-tighten the retaining nut. Reconnect the pivot rod to the clevis strap with the spring clip. Finally, screw the decorative cap back onto the top of the stopper.

Goal: Bathroom Sink Repair (Standard)

  • The hole in the plastic plate of the stopper must face the wall to allow the pivot rod to connect properly.

Used in this video

  • Gloves (Gloves Material: Nitrile) · optionalKeeping hands clean during reassembly.
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This Old House

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FAQs

What's the most challenging part for a beginner, and how can I prepare for it?

The trickiest part for a beginner is often accessing the plumbing behind the tub, especially if space is tight or an access panel isn't readily available. Ensure you have ample lighting, like the NITECORE flashlight, and be prepared for potentially corroded or seized old components which might require extra patience and leverage from Channellock pliers.

How important is using plumber's putty, and are there alternatives for sealing the drain flange?

Plumber's putty is crucial for creating a watertight seal between the drain flange and the tub surface, effectively preventing leaks. Apply a generous, continuous bead under the flange before seating it. While silicone sealant can also be used, plumber's putty allows for easier future removal if necessary.

The project says 5 hours, but what if my old drain is severely corroded or stuck?

Heavily corroded or seized drain components can indeed extend the project time beyond the estimated 5 hours. Have penetrating oil on hand to help loosen stubborn threads and allow it to sit. You might also need a hacksaw, like the Husky Close Quarters Hacksaw, to cut away old components if they cannot be unscrewed.

Do I need to turn off my home's main water supply before starting this project?

While you are not directly working on pressurized water lines that require the main supply to be off, it's a wise safety precaution to do so. This minimizes the risk of accidental water damage if a pipe is inadvertently compromised or if you want to prevent water from inadvertently entering the tub during the process. It also helps manage any residual water in the pipes.