Ever been enjoying a relaxing shower, only to have a trickle of water stubbornly continue to flow from the tub spout? Or maybe you're struggling to get any water to divert to the showerhead at all? A faulty tub spout diverter is a common plumbing problem, and while it might seem daunting, replacing it yourself is often a simple and cost-effective solution. Ignoring a malfunctioning diverter can lead to wasted water, reduced water pressure in your shower, and even eventual damage to your plumbing system.
A new tub spout can be purchased from any local hardware store, in a variety of finishes and styles. The problem of a failing diverter is that over time, they simply wear out. This can be because of age, or the type of water running through your plumbing system. Replacing the diverter will restore proper water flow, ensuring a more enjoyable and efficient showering experience. Taking the DIY route saves you from expensive plumber bills and gives you the satisfaction of tackling a home repair project yourself.
What tools do I need, and how do I get started?
How do I determine what type of tub spout diverter I have?
The easiest way to determine your tub spout diverter type is to examine how it's activated. If the diverter is a pull-up knob on the spout itself, it's likely an internal diverter. If the diverter is a separate knob or handle located on the faucet body or wall, it's a remote diverter. Older spout diverters may require you to pull up the whole spout body.
Internal diverters are the most common type found in homes. These are characterized by a small knob or lever located on the tub spout itself. When you pull up (or sometimes push down) on this knob, it redirects the water flow from the spout to the showerhead. This is a simple and self-contained system, making it generally easier to replace the entire spout when the diverter malfunctions. Look closely to see if the diverter has screws or other fasteners allowing access. If you cannot see any fasteners you will likely need to replace the whole spout.
Remote diverters, on the other hand, are separate mechanisms connected to the faucet body or wall. These often use a separate handle or knob to control the water flow. Identifying these is straightforward; they won't be physically attached to the tub spout. While the diverter mechanism is separate, the functionality is the same: redirect water to the showerhead. If you have this type of diverter spout, you can often unscrew it directly, no diverter maintenance needed.
How do I remove a corroded or stuck tub spout?
Removing a corroded or stuck tub spout often requires a combination of patience, penetrating oil, and the right tools. First, identify the type of spout (slip-on or threaded). Apply penetrating oil liberally around the base of the spout where it meets the wall, letting it soak for at least 15-30 minutes. Then, use the appropriate method (wrench for threaded, gentle twisting and pulling for slip-on) to try and loosen it. If it remains stubborn, heat can help break the corrosion bond, but be cautious not to damage surrounding surfaces.
For slip-on tub spouts (held in place by a setscrew), locate the setscrew (usually on the underside of the spout, near the wall). Loosen the setscrew with an Allen wrench. If the spout is still stuck after loosening the screw, gently twist and pull the spout away from the wall. Corrosion can build up between the spout and the copper pipe, making it difficult to remove. In these cases, a spout puller tool can be invaluable. This tool provides a more secure grip and leverage, minimizing the risk of damaging the pipe. Threaded tub spouts screw directly onto a threaded pipe nipple extending from the wall. After applying penetrating oil, use a pipe wrench or adjustable wrench to grip the spout as close to the wall as possible. Turn the spout counterclockwise to unscrew it. Be careful not to apply excessive force, as you could damage the pipe inside the wall. If the spout is severely corroded and won't budge, consider cutting it off close to the wall with a hacksaw or reciprocating saw. Then, carefully use an internal pipe wrench (also known as a nipple extractor) to remove the remaining threaded portion from the pipe. Be prepared to replace the pipe nipple if it's also corroded or damaged.What should I do if the new diverter spout leaks?
If your new tub spout diverter leaks after installation, the most likely culprits are incorrect installation, incompatible pipe threading, or a defective spout. Begin by carefully re-examining your installation to ensure the spout is securely tightened onto the pipe nipple and that Teflon tape was properly applied to the threads. If the leak persists, try a different spout or consider replacing the pipe nipple to ensure compatibility and proper sealing.
First, double-check your installation. Remove the spout and meticulously inspect the pipe nipple extending from the wall. Clean off any old sealant or debris and reapply Teflon tape, wrapping it clockwise several times around the threads. Ensure the tape is smooth and evenly distributed. Reinstall the spout, tightening it firmly but avoiding overtightening, which can damage the threads or the spout itself. If the leak remains, the problem may lie within the spout's diverter mechanism, especially if the water is leaking from the spout's opening even when the diverter is engaged. If re-taping and re-tightening don't resolve the issue, consider the possibility of a defective new spout. Diverter mechanisms can sometimes fail even in new units. A straightforward test is to temporarily install a different, known-good tub spout. If the second spout doesn't leak, then you've confirmed the first spout was faulty and should return it for a replacement. Another potential issue is incompatibility between the spout's threading and the pipe nipple. If the threads don't match up perfectly, a proper seal won't form, even with Teflon tape. Consider replacing the pipe nipple with a new one that closely matches the spout's thread type. You can also try a thicker pipe thread sealant compound (pipe dope) in addition to, or instead of, the Teflon tape, as this can sometimes fill minor thread imperfections and provide a better seal.How do I know what size replacement tub spout to buy?
The size of the replacement tub spout you need depends on the type of connection it uses: either threaded (screws onto a pipe) or slip-on (slides onto a pipe and is secured with a set screw). For threaded spouts, measure the outside diameter of the threaded pipe protruding from the wall. Common sizes are 1/2-inch and 3/4-inch. For slip-on spouts, measure the outside diameter of the copper pipe; the spout packaging should specify the pipe size it fits.
To determine the correct size for a threaded tub spout, carefully measure the exposed threaded pipe extending from the wall after you've removed the old spout. It's crucial to measure the *outside* diameter of the threads. While 1/2-inch and 3/4-inch are the most frequent sizes, slight variations can exist, so accuracy is important. A good practice is to use calipers if you have them, or compare the measurement to a ruler or measuring tape ensuring it's the most precise measurement possible.
For slip-on tub spouts, identifying the pipe size is simpler. Typically, the copper pipe will be either 1/2-inch or 3/4-inch nominal size. Although the *actual* outside diameter will be slightly larger than the nominal size, the spout packaging will usually indicate the *nominal* pipe size it's designed to fit. For example, a spout might state "Fits 1/2-inch copper pipe." If you're still unsure, consider taking a piece of the old spout (if possible) or a precise measurement of the pipe to your local hardware store for assistance in selecting the correct replacement.
Is it possible to repair a tub spout diverter instead of replacing it?
Yes, it is sometimes possible to repair a tub spout diverter instead of replacing the entire spout, especially if the problem lies with a worn-out diverter valve or O-ring. However, the feasibility of repair depends on the spout's design, the extent of the damage, and the availability of replacement parts.
While some older tub spouts were designed with easily accessible and replaceable diverter components, many modern spouts are manufactured as a single, sealed unit. In these cases, repair is often impractical or impossible. Attempting to disassemble a sealed unit can damage the spout further. If the diverter valve is the issue, and you can identify the manufacturer and model, you might be able to order a replacement valve. Similarly, if the diverter simply needs a new O-ring, that's usually a simple and inexpensive fix. Before attempting any repairs, carefully examine the spout and diverter mechanism. Look for any visible signs of damage, such as cracks, corrosion, or mineral buildup. If the spout is severely damaged or the diverter mechanism is significantly corroded, replacement is generally the more cost-effective and reliable option. Weigh the cost of potential replacement parts and your time against the cost of a new spout. A new spout may ultimately be the best option, offering a fresh aesthetic and guaranteed functionality.Can I change a tub spout diverter if I have limited plumbing experience?
Yes, changing a tub spout diverter is generally a manageable DIY project, even with limited plumbing experience, as long as you proceed carefully and follow instructions closely. The difficulty largely depends on the type of spout you have (screw-on, slip-on, or set-screw) and whether the old spout is corroded or difficult to remove.
Changing a tub spout diverter typically involves removing the old spout, which might require unscrewing it, loosening a set screw, or pulling it off a pipe nipple using gentle force. Once the old spout is removed, you'll need to clean the pipe and apply Teflon tape to the threads (for screw-on types) or silicone sealant (for slip-on types) before installing the new spout. The key is to identify the type of spout you have and find specific instructions for that type. Many helpful video tutorials are available online that can guide you through the process step-by-step. Before starting, gather the necessary tools: a screwdriver (possibly a set), adjustable pliers or a pipe wrench (use with caution to avoid scratching), Teflon tape or silicone sealant, and possibly a penetrating oil like WD-40 to help loosen a stuck spout. It's also crucial to turn off the water supply to the tub/shower before starting the replacement to prevent leaks and potential water damage. If you encounter any significant resistance or difficulty, it's always best to consult a qualified plumber to avoid damaging the plumbing or injuring yourself.And that's all there is to it! Hopefully, you've successfully swapped out that diverter and can now enjoy a proper shower without any unwanted water escaping from the spout. Thanks for following along, and be sure to check back for more easy DIY tips and tricks to keep your home running smoothly!