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Install the New Tub Spout — Purchase the Correct Replacement Spout

Beginner

Part of project

How to Fix a Shower Diverter on a Tub Spout · Step 4 of 7

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In this video

Ensure the copper pipe stub-out for the tub spout is the correct length and is clean. Slide the new tub spout onto the pipe until it sits flush against the tiled wall. Locate the set screw on the underside of the spout. Use the correct size Allen wrench to tighten the set screw, which will secure the spout firmly onto the copper pipe. Turn the water supply back on and test the faucet, checking for leaks at the spout and handle.

Goal: Bathtub Faucet Installation

  • Apply a small bead of caulk or plumber's putty around the base of the spout where it meets the wall to create a watertight seal.

Used in this video

  • Allen wrench/hex key (brand: N/A, Allen Wrench/Hex Key Size: Various sizes)Tightening the set screw on the underside of the tub spout.
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FAQs

Is replacing a tub spout diverter truly a beginner-friendly DIY project, and how long should it typically take?

Yes, fixing a leaking diverter by replacing the entire tub spout is considered beginner-friendly as it primarily involves simple removal and installation. Most DIYers can complete this project within 1-2 hours, assuming they have the correct replacement spout and tools readily available.

How do I ensure I purchase the correct replacement tub spout, especially regarding connection type and diverter mechanism?

First, you must determine if your old spout is threaded (screwed directly onto the pipe) or slip-on (secured by a set screw or O-ring) by examining its attachment point. Next, decide on the diverter style you prefer. Bringing the old spout to the store or taking detailed pictures can help ensure perfect compatibility.

The project lists several tools like a pipe wrench and hex key; are they all essential, and can I substitute any?

A pipe wrench or large adjustable wrench is crucial for threaded spouts, while a hex key set is necessary for many slip-on spouts. A utility knife is essential for cutting old caulk, and a caulk gun is needed for the new sealant. While some tools are specific, having the right ones ensures an efficient and proper installation.

What are the most common mistakes beginners make when replacing a tub spout, and how can I avoid leaks after installation?

A common mistake is not thoroughly cleaning and preparing the pipe with sandpaper before installation, which can compromise the new spout's seal. Another critical error is failing to apply a continuous bead of waterproof silicone caulk around the base where the spout meets the wall, which prevents water from seeping behind the wall.