How to Install a Tub Spout: DIY

Install a Tub Spout

Enhancing Your Bathroom: A Guide to Install  A Tub Spout.

Embarking on home improvement projects can be both fulfilling and practical, and one such project that carries an accessible yet impactful nature is the replacement / installation of a tub spout.

Whether your current spout has seen better days or you’re aiming to refresh the look of your bathroom, learning how to install a tub spout is a handy skill that can save you time and money.

This guide will walk you through the steps, ensuring that the only challenge you face is selecting the right type of spout for your needs.

Whether you’re dealing with diverters, slip-on styles, or threaded options, this comprehensive guide provides you with the knowledge and confidence to master tub spout installation.

Table of Contents

Types of Tub Spouts:

Diverters, Slip-On & Threaded Spouts
Various tub spouts come with diverters that redirect water toward the showerhead, while others lack them due to an integrated diverter in the shower valve itself.

It’s important to determine how your current spout attaches to the plumbing.

Check underneath for a small set screw. If present, you have a slip-on spout. If not, it’s a threaded spout. This guide covers replacing both types.

Remove Tub Spout

Gently cut any caulk between the tub spout and the wall. Since there’s no set screw, we know this is a threaded spout. Grip the spout firmly and turn it counterclockwise.

After a few turns, the spout should come off, leaving the threaded copper nipple exposed from the wall.

Caulk and Apply Pipe Thread Tape

Now’s a suitable moment to seal the gap between the pipe and the wall with silicone caulking. Then, wrap fresh pipe thread tape around the threads on the nipple.

Pipe Length Determines Spout Threads

If the nipple protrudes less than three-quarters of an inch from the wall, you’ll require a tub spout with threads located nearby.

On the other hand, if the nipple extends around four inches, you’ll need a tub spout with threads placed lower down.

Tighten the Spout Onto the Pipe and Caulk

Screw the spout onto the stubbed-out nipple until it’s flush against the wall. Avoid using pliers to tighten it, as they could lead to over-tightening or surface damage.

Lastly, apply a thin line of silicone caulk to the top three-quarters of the spout.

Loosen Screw and Remove Spout

If your existing bathtub spout has a set screw, the installation process is slightly different. Loosen the screw and pull the spout away from the wall. You might need to wiggle it a bit.

Apply Plumber’s Grease and Add Spout

Apply waterproof plumber’s grease to the copper nipple, then push the spout back until it’s flush with the wall.

Tighten Screws, Caulk, and Test for Leaks

Tighten the set screw and apply caulk. After completion, test the spout for leaks with the diverter both open and closed. Should you notice water coming from the back of the spout, double-check the connections.

Universal Tub Spout Options

Additionally, there’s a universal tub spout available with different adapters for slip-on and threaded connections.

It also includes a bushing for attaching the spout to a three-quarter-inch or half-inch threaded pipe. This versatile spout suits a wide range of situations.