Shower-Diverter8 min read

How to Replace a Tub Spout with Shower Diverter: A Step-by-Step Guide

E
Editorial Team
2025-12-19
How to Replace a Tub Spout with Shower Diverter: A Step-by-Step Guide

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How to Replace a Tub Spout with Shower Diverter: A Step-by-Step Guide

Replacing a tub spout with a shower diverter might seem like a daunting task, but trust me, it's easier than you think! If you're tired of your current setup or want to upgrade to a more functional system, this comprehensive, step-by-step guide will walk you through the entire process. No need to call a plumber; with a few simple tools and our clear instructions, you'll have a new tub spout with shower diverter installed in no time. Let's get started!

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Before you begin, it's essential to have all the necessary tools and materials within easy reach. This will save you time and prevent frustration during the installation process. Here's what you'll need:

  • New tub spout with shower diverter: Choose one that matches your plumbing and aesthetic preferences.
  • Plumber's tape (Teflon tape): This is essential for creating a watertight seal.
  • Adjustable wrench: For loosening and tightening connections.
  • Pliers (optional): Helpful for gripping and removing stubborn parts.
  • Screwdriver (if needed): Depending on the type of set screw.
  • Rag or towel: To protect the tub and faucet finish.
  • Cleaning supplies: To clean the exposed pipe threads.
  • Measuring tape: To measure the pipe size if you're unsure.

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This is often the trickiest part, as old spouts can be stuck or corroded. Here's how to remove your old tub spout with shower diverter, depending on the type:

Set Screw Spout

  1. Locate the Set Screw: Look underneath the spout for a small screw, usually near the wall.
  2. Loosen the Set Screw: Use an Allen wrench or screwdriver (depending on the screw type) to loosen the set screw. Don't remove it completely, just enough to be able to slide the spout off.
  3. Pull the Spout Forward: Gently but firmly pull the spout straight out from the wall. It might take a bit of wiggling. If it's really stuck, try using pliers with a rag wrapped around the spout to avoid scratching it.

Slip-On Spout

  1. Grip and Twist: Firmly grip the spout near the base (where it meets the wall).
  2. Twist and Pull: Twist the spout counterclockwise while simultaneously pulling it towards you. This type of spout is threaded onto a pipe, so unscrewing it is the key. Again, a rag and pliers can help with a stubborn spout.

Threaded Spout

  1. Protect the Spout: Wrap the old spout with a rag to prevent scratches.
  2. Use the Wrench: Use an adjustable wrench to grip the spout firmly.
  3. Unscrew the Spout: Turn the wrench counterclockwise to unscrew the spout from the pipe.

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Once the old tub spout with shower diverter is removed, you'll need to prepare the pipe for the new one.

  1. Clean the Pipe Threads: Use a wire brush or a rag to clean any old plumber's tape or debris from the threads of the pipe. A clean surface is crucial for a good seal.
  2. Inspect the Pipe: Check the pipe for any damage, such as cracks or corrosion. If you find any issues, you may need to consult a plumber to replace the damaged section of pipe.
  3. Apply New Plumber's Tape: Wrap the threads of the pipe with several layers of plumber's tape. Wrap it in a clockwise direction as you look at the pipe's end. This will help create a watertight seal and prevent leaks. Three to four wraps of tape should be sufficient.

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Now comes the rewarding part - installing the new spout! The installation process varies slightly depending on the type of spout you purchased.

Set Screw Spout Installation

  1. Slide the Spout On: Carefully slide the new spout onto the pipe, making sure it's aligned properly.
  2. Tighten the Set Screw: Once the spout is in the desired position, tighten the set screw securely. Don't overtighten, or you could damage the pipe or the spout.
  3. Test the Diverter: Pull up on the diverter knob or lever to ensure that the water is diverted to the showerhead. Check for any leaks around the base of the spout.

Slip-On Spout Installation

  1. Line Up the Threads: Carefully line up the threads of the spout with the threads of the pipe.
  2. Screw the Spout On: Twist the spout clockwise onto the pipe until it is snug. Don't overtighten, as this can damage the threads or the spout.
  3. Test the Diverter: Pull up on the diverter knob or lever to ensure that the water is diverted to the showerhead. Check for any leaks around the base of the spout.

Threaded Spout Installation

  1. Determine proper tightness: This depends on the model and manufacturer.
  2. Consider using adjustable wrench (but protect finish): Use adjustable wrench and rag when tightening.
  3. Test the Diverter: Pull up on the diverter knob or lever to ensure that the water is diverted to the showerhead. Check for any leaks around the base of the spout.

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While the process is easy enough, having the right tools makes everything much smoother. I highly recommend this Adjustable Wrench Set by CRAFTSMAN. Its wide jaw capacity and comfortable grip make loosening stubborn old spouts a breeze. Plus, the durable construction means it'll last for years of plumbing projects. Its available on Amazon.

Another great tool is these Plier Set by Channellock. With its multiple sizes and enhanced grip, you can confidently tackle any plumbing repair. Protect the surface from scratches by placing a cloth in between the plier head and the shower diverter. It's also conveniently available on Amazon.

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After installing the new spout, it's crucial to test for leaks to ensure a watertight seal.

  1. Turn on the Water: Slowly turn on the water and let it run through the spout for a few minutes.
  2. Check for Leaks: Carefully inspect the base of the spout, where it meets the wall, for any signs of leaks. Also, check the connection between the spout and the pipe.
  3. Test the Diverter: Pull up on the diverter knob or lever to divert the water to the showerhead. Check for leaks around the diverter mechanism and the showerhead connection.
  4. Tighten Connections (If Needed): If you find any leaks, tighten the connections slightly with the adjustable wrench. Be careful not to overtighten, as this could damage the threads.

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  • What if the old spout is really stuck? If you're having trouble removing the old spout, try using a penetrating oil or rust remover. Apply it to the connection and let it sit for a few minutes before attempting to remove the spout again. You can also try gently heating the spout with a hairdryer to help loosen it.
  • What if the pipe is too short? If the pipe is too short for the new spout, you may need to install a pipe extension. These are available at most hardware stores.
  • What if the spout leaks even after tightening? If the spout continues to leak after tightening the connections, you may need to reapply plumber's tape. Remove the spout, clean the threads, and apply fresh plumber's tape before reinstalling the spout.
  • How often should I replace my tub spout? A well-maintained tub spout can last for many years. However, if you notice signs of corrosion, leaks, or damage, it's best to replace it.
  • Can I use any tub spout with my existing plumbing? No, you need to consider the type of connection (set screw, slip-on, or threaded) and the diameter of the pipe when choosing a new spout.

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Congratulations! You've successfully replaced your old tub spout with a new one with a shower diverter. With this simple upgrade, you've not only improved the functionality of your bathroom but also saved yourself the cost of hiring a plumber. Remember, with a little patience and the right tools, even seemingly daunting DIY projects are well within your reach. Enjoy your updated shower experience! You did it! <br><a href="https://www.amazon.com/s?k=tub spout with shower diverter&sort=price-asc-rank&tag=bestbathroomrenovation-20">[Shop Budget-Friendly tub spout with shower diverter on Amazon.]</a><br>

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