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Install New Drain Fitting — Prepare the Work Area

Beginner3 hours

Part of project

How to Fix a Shower Diverter on a Tub Spout · Step 1 of 7

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In this video

Carefully insert the new, prepared drain fitting into the drain opening and begin screwing it clockwise into the drain pipe below. Hand-tighten it as much as possible. Once hand-tight, insert the tub drain dumbbell tool into the new drain's crosshairs. Place a large screwdriver through the holes in the dumbbell to act as a T-handle for leverage. Turn the dumbbell clockwise to tighten the drain fitting until it is snug and the plumber's putty begins to squeeze out evenly around the flange.

Goal: Screw in and tighten the new drain.

  • Do not overtighten, as this can crack the drain fitting or the bathtub.

Used in this video

  • Tub Drain Dumbbell (brand: N/A, Tool Type: Wrench)Tightening the new drain fitting into the plumbing.
  • Screwdriver (brand: N/A, Screwdriver Type: Flathead)Providing leverage to turn the dumbbell tool.
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Sam

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FAQs

Do I really need all the tools listed, like a torque wrench or patio furniture, for this project?

No, some listed tools are irrelevant for this specific project. You'll primarily need a utility knife or putty knife for caulk removal, a caulk gun for sealing, a rag/towel, and potentially an Allen wrench if your old spout has a set screw. Focus on plumbing-specific tools and materials.

What is the most important step to ensure a watertight seal for the new tub spout?

Thoroughly cleaning the pipe connection area is crucial. Remove all old caulk, debris, and corrosion before installing the new spout. After installation, apply a generous, continuous bead of silicone caulk around the base where the spout meets the wall to prevent water infiltration into the wall cavity.

How can I be sure to purchase the correct replacement tub spout?

First, determine if your existing spout is thread-on or slip-on by checking for threads inside the spout or a set screw underneath. Measure the pipe protrusion from the wall. Bringing your old spout or clear photos to the store will help ensure you get a new spout with the correct connection type and fit.

What should I do if water still drips from the tub spout when the shower is on after replacement?

If water still leaks, first re-examine your caulk seal for any gaps or imperfections. If the seal is good, ensure the new spout is fully engaged with the pipe connection; for threaded spouts, ensure plumber's tape was used and it's tightened properly. For slip-on spouts, verify the O-rings are seated correctly and the set screw is secure.