Replacing a tub spout with diverter is a relatively straightforward plumbing project that most DIYers can tackle. The tub spout diverter controls the flow of water, diverting it up to the shower head when you pull up on the diverter knob. Over time, the diverter can wear out or start to leak, requiring replacement of the entire tub spout.
This project takes about an hour to complete with some basic plumbing skills and tools. The key steps include turning off water supply lines, removing the old spout, installing pipe adapters if needed, applying plumber’s putty, and installing the new tub spout diverter. Taking your time and following directions closely will ensure a smooth install.
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Things You’ll Need
| Tools |
|---|
| Adjustable wrench |
| Channel lock pliers |
| Phillips screwdriver |
| Torch (to sweat copper, if needed) |
| Materials |
|---|
| Replacement tub spout with diverter |
| Pipe adapters, if needed |
| Plumber’s putty or silicone caulk |
| Rags |
| Emery cloth or steel wool |
The specific supplies needed will depend on your current tub plumbing setup. Most tub spouts have a 1/2″ copper inlet, but some older tubs use iron or galvanized pipe. Having the right pipe adapters on hand will make connecting the new spout easier.
Shutting Off Water Supply
Before removing the old spout, you need to shut off the water supply lines. This prevents water from spraying out when you remove the spout. There are a few ways to do this:
– Locate the shut-off valves underneath the sink or behind the tub. Turn them clockwise to shut off the hot and cold water lines.
– If there are no dedicated shut-off valves, turn off the main water supply line for the house. This is usually near the front of the house or basement.
– As a temporary solution, turn off the water at the street meter. Use a special water meter key to rotate the valve clockwise.
Shutting off water supply is crucial. Be sure all lines are fully closed before beginning work. Turn on the tub faucet briefly to release pressure and drain any leftover water from the lines.
Removing the Old Tub Spout
With the water off, you can proceed to removing the old spout:
1. Inspect the tub spout and note how it attaches. Most spouts either have a set screw beneath or on the side that needs to be loosened with a screwdriver. Others slide off the pipe.
2. Use a screwdriver to remove any set screw or cover plate from the spout. If needed, spray penetrating oil on the screw first to loosen it.
3. Twist and rock the spout back and forth while pulling outward to slide it off the pipe. Gently pry with a flathead screwdriver if it’s stuck on.
4. Once removed, inspect the end of the pipe. Look for corrosion or damage you may need to sand or file down before installing the new spout.
5. Clean any old plumber’s putty or caulk from the tub surface around the spout opening. Scrub with a rag or steel wool to remove residue.
Taking your time removing the old spout prevents damage to the existing plumbing. Be prepared to cut away stubborn spouts that refuse to budge.
Preparing the New Tub Spout
With the old spout removed, take a minute to prepare your new replacement spout before installation:
– Check the inlet size and type on the new spout. Make sure it matches your tub’s pipe material and diameter.
– Obtain any adapters needed to convert from copper to iron pipe or a different size inlet. Compression and sweat adapters are most common.
– Dry fit the spout onto the pipe to test the fit. The spout should slide most of the way on. Mark the depth if needed.
– Wrap plumber’s tape clockwise around any threaded adapter joints. This seals the threads to prevent leaks.
– Open the spout box and read the manufacturer’s instructions before proceeding.
Taking these preparatory steps ensures you have the right connections and parts for your new spout. It also confirms the sizing before permanently attaching it.
Installing the New Tub Spout
Once you’ve prepped the tub surround and the new spout, you’re ready for installation:
1. Apply a ring of plumber’s putty around the spout outlet opening. This seals the base when you slide it onto the tub.
2. Press the spout over the pipe inlet. Twist it back and forth as you push it on to distribute the putty evenly.
3. Slide the spout on until it stops or reaches your depth mark from dry fitting. Do not force it.
4. Tighten any set screws beneath the spout. If it uses a cover plate, install that now.
5. Wipe away any excess putty that squeezes out around the base. Let it set per the putty directions.
6. Turn the water supply back on and check for leaks at the spout connections. Let the putty dry fully before using.
Go slowly when installing the spout to ensure proper positioning. Do not block the diverter knob with caulk or putty. Report any leaks immediately.
Tips for Proper Installation
– Ensure pipe adapters fit snugly using pipe tape and wrenches. Do not over tighten.
– Apply putty in a smooth, consistent ring. Use caulk for small gaps only.
– Confirm the spout diverter knob operates properly after installing.
– Check for leaks right away and tighten joints or add more putty as needed.
Taking extra care during installation prevents leaks and other operation issues with your new spout.
Troubleshooting Problems
In most cases, your new tub spout diverter will install without any problems. But here are some troubleshooting tips for common issues:
Spout leaks from handle area: Make sure no plumber’s putty or caulk is blocking the diverter valve. Clean out any excess material.
Spout drips from inlet joints: Tighten the pipe adapters or add more plumber’s tape to the threads.
Diverter stuck in tub mode: Pull firmly on the diverter knob and twist back and forth. Lubricate the valve if needed.
Low pressure from shower head: Check for flow restrictors in the shower head. Clean or replace filters if clogged.
No water diverting to shower head: The spout diverter is likely faulty. Confirm the diverter gate inside is opening properly.
Dealing with leaks or operation issues promptly prevents additional damage. Call a plumber if you cannot resolve it yourself.
Conclusion
Replacing a leaky or damaged tub spout with diverter is well within the DIY realm. Following the proper steps for water shut-off, prep work, installation, and leak testing will ensure success. Having the right adapters for your plumbing system makes the project much smoother. Remember to take your time and don’t force pieces together too tightly. With a little patience and care, you can enjoy your upgraded and drip-free tub spout.