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Loosen Tub Spout Set Screw — Remove the Old Tub Spout

Beginner3 hours

Part of project

How to Fix a Shower Diverter on a Tub Spout · Step 2 of 7

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In this video

Move to the tub spout. On the underside, locate the small hole for the set screw. Insert the appropriate size Allen key into the hole and turn it counter-clockwise to loosen the screw. It only needs to be loosened enough to release its grip on the water pipe.

Goal: Release Tub Spout from Pipe

  • Some tub spouts may screw on instead of using a set screw. If you don't find a set screw, try turning the entire spout counter-clockwise.

Used in this video

  • Allen wrenches (Tool Type: Hand tools, Power Source: Manual, Allen Wrench Size: Metric)Loosening the set screw on the underside of the tub spout.
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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.