To create a final waterproof barrier, apply a thin, neat bead of plumber's putty or tub & tile silicone caulk around the base of the spout where it meets the wall. This prevents water from splashing behind the spout and into the wall cavity. Once sealed, turn on the water and observe the spout. Check for leaks around the base. Pull the diverter to send water to the showerhead. Check that the diverter works correctly and that water is not leaking excessively from the spout. A small drip from the spout while the shower is on can be normal, but a steady stream indicates a faulty diverter inside the new spout.
You're viewing a step from: How to Replace a Leaky Bathtub Spout (Thread-on vs. Slip-on)
This guide provides comprehensive instructions for replacing a leaky bathtub spout. The process involves identifying the spout type (thread-on vs. slip-on), carefully removing the old fixture, cleaning and preparing the wall pipe, and correctly installing the new spout to ensure a watertight, leak-free seal.
Frequently Asked Questions
What is the difference between a thread-on and slip-on bathtub spout?
A thread-on spout screws directly onto a threaded pipe nipple coming from the wall. A slip-on spout slides over a copper pipe and is secured with a set screw underneath. Check your existing spout type before buying a replacement.
How do I know if my bathtub spout is leaking from the diverter or the connection?
If water drips from the spout when the shower is running, the diverter is failing. If water leaks around where the spout meets the wall, the connection or seal needs attention. Both issues require removing the spout.
What tools do I need to replace a bathtub spout?
For most spout replacements, you will need a hex key or Allen wrench (for slip-on types), pipe wrench or adjustable pliers (for thread-on types), plumbers tape, and silicone caulk for sealing.
Can I replace a bathtub spout myself without calling a plumber?
Yes, this is typically a DIY-friendly project that takes about 30 minutes. The key is identifying your spout type first and having the right replacement part.
How to Replace a Leaky Bathtub Spout (Thread-on vs. Slip-on)
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Step 1: Prepare the Work Area
Step 1: Prepare the Work Area
Step 1: Prepare the Work Area
Step 2: Identify the Spout Type
Step 2: Identify the Spout Type
Step 2: Identify the Spout Type
Step 3: Remove the Old Spout
Step 3: Remove the Old Spout
Step 3: Remove the Old Spout
Step 4: Clean and Prepare the Pipe
Step 4: Clean and Prepare the Pipe
Step 4: Clean and Prepare the Pipe
Step 5: Install the New Spout
Step 5: Install the New Spout
Step 5: Install the New Spout
Step 6: Seal and Test for Leaks
Step 6: Seal and Test for Leaks
Step 6: Seal and Test for Leaks
Start your project
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