If your bathtub faucet keeps spraying water when the shower is on, you’re dealing with a common issue: a faulty diverter. The diverter is the small mechanism inside the tub spout that redirects water from the tub to the showerhead. When it fails, water leaks or sprays out of the tub spout instead of going fully to the shower. The good news? It’s usually an easy fix.
Why Does My Bathtub Faucet Spray When the Shower Is On?
The problem almost always comes down to the diverter. Here are the most common causes:
- Worn-out diverter: After years of use, seals and springs inside the diverter stop sealing properly.
- Mineral buildup: Hard water deposits can clog the diverter and prevent it from closing fully.
- Damaged tub spout: Older spouts may crack or corrode, leading to uneven water flow.
- Low-quality parts: Cheaper faucets often wear out faster under daily use.
How to Fix the Problem – Step by Step
You can usually solve this problem by repairing or replacing the diverter spout. Here’s how:
- Turn off the water supply. Always shut off the water before starting.
- Remove the old tub spout. Most are threaded (unscrew counterclockwise) or secured with a set screw underneath.
- Inspect the diverter. Check for cracks, corrosion, or mineral deposits.
- Clean or replace. Light buildup can be soaked in vinegar, but in most cases, replacement is easier and longer-lasting.
- Install a new tub spout or faucet set. Thread on the new spout or secure it with a set screw.
- Test the shower. Run the water, pull up the diverter, and check that all water flows to the showerhead with no spraying from the spout.
When to Replace the Entire Faucet
If your bathtub faucet is more than 10 years old, it’s often better to replace the entire tub-and-shower faucet set. A new faucet not only fixes leaks but also updates your bathroom’s look and improves water efficiency.
Best Tub and Shower Faucets to Fix Diverter Issues
Moen Adler Tub and Shower Faucet
Best Overall Choice
- Includes tub spout with diverter, showerhead, and valve.
- Pressure-balancing technology prevents temperature swings.
- Durable chrome finish resists corrosion.
Verdict: A complete kit that solves diverter leaks. Check Price on Amazon.
Delta Windemere Tub and Shower Faucet
Best Budget Option
- Includes diverter tub spout, showerhead, and trim kit.
- WaterSense certified for water savings.
- Available in oil-rubbed bronze for a classic look.
Verdict: A cost-effective way to stop faucet spraying. Check Price on Amazon.
Grohe Concetto Pressure Balance Shower Faucet
Best Premium Pick
- German-engineered faucet with precise pressure balance.
- Includes tub spout, showerhead, and premium valve.
- Luxury chrome finish resists tarnish and buildup.
Verdict: A long-lasting, high-performance solution. Check Price on Amazon.
Comparison Table
| Faucet | Includes Diverter? | Style | Price |
|---|---|---|---|
| Moen Adler | Yes | Traditional | $$ |
| Delta Windemere | Yes | Classic | $$ |
| Grohe Concetto | Yes – premium valve | Luxury | $$$$ |
FAQ
1. Why does water still come out of my tub faucet when the shower is on?
The diverter isn’t sealing fully. Replacing the tub spout or diverter usually fixes it.
2. Can I fix the diverter without replacing the faucet?
Yes. If the faucet is otherwise in good condition, replacing just the tub spout with a new diverter is a quick fix.
3. How long does a tub spout diverter last?
Typically 7–10 years, depending on water quality and usage.
4. Do I need a plumber to replace a tub spout?
Not usually. Most homeowners can replace a tub spout with basic tools in under an hour.
Conclusion
If your bathtub faucet sprays out when the shower is on, the diverter is the culprit. You can often fix it by replacing the tub spout or cleaning the diverter. For older faucets, replacing the entire faucet set is the best long-term solution. Modern faucets come with reliable diverters and pressure-balancing valves to ensure smooth, leak-free performance.
Ready to stop the spraying? Shop the best tub and shower faucets on Amazon and upgrade your bathroom today.