Turning the knob or pulling the diverter but nothing happens? If your bath faucet is not switching to shower, you’re not alone. This is one of the most common problems in bathrooms with tub-and-shower combos. The water keeps flowing from the tub spout instead of redirecting upward, leaving you with a frustrating experience.
Luckily, this problem usually has straightforward solutions. In this guide, we’ll explain why bath faucets fail to switch, how to troubleshoot and fix the issue, and when it’s time to replace the diverter or the entire faucet. We’ll also share our picks for the best premium tub-shower faucets ($300+) that are built to last and prevent future issues.
Quick Picks: Best Tub-Shower Faucets
- Best Overall: Delta Trinsic Tub and Shower Faucet – Smooth diverter function, modern design, durable cartridge.
- Best Budget: Moen Adler Tub and Shower Faucet – Affordable premium option with reliable diverter.
- Best Premium: Brizo Litze Tub and Shower System – Luxury performance with long-lasting diverter and advanced control.
Why Won’t My Bath Faucet Switch to the Shower?
The mechanism that redirects water from the tub spout to the showerhead is called a diverter. When it fails, water won’t flow properly. Here are the most common causes:
- Worn diverter valve: The internal component that redirects water can wear down with age.
- Mineral buildup: Hard water deposits can clog the diverter, reducing water flow.
- Loose or damaged pull-up knob: The lever on the tub spout may be loose, broken, or stuck.
- Cartridge problems: In single-handle faucets, the mixing cartridge can affect water redirection.
- Old or corroded faucet: If your faucet is more than 10–15 years old, general wear may prevent switching.
How to Fix a Bath Faucet That Won’t Switch to Shower
- Check the diverter: If it’s stuck, soak it with vinegar to dissolve mineral deposits.
- Tighten connections: A loose tub spout can prevent proper sealing — remove and reinstall with plumber’s tape if needed.
- Replace the diverter spout: Many tub spouts with diverters are inexpensive and easy to replace.
- Inspect the cartridge: If the faucet handle isn’t mixing water correctly, a new cartridge may solve the issue.
- Upgrade the entire faucet: For older or repeatedly failing systems, replacing the faucet is the most effective solution.
Tip: If your diverter spout is threaded, replacing it is usually a 15-minute DIY job.
When to Replace Instead of Repair
Repairs can work for newer faucets, but replacement may be better if:
- The faucet is more than 10 years old.
- Multiple parts (diverter, cartridge, handles) are failing.
- You want upgraded styling or modern features like thermostatic control.
Detailed Reviews: Best Tub and Shower Faucets
1. Delta Trinsic Tub and Shower Faucet
Who it’s for: Homeowners who want modern looks with reliable performance.
- Key Benefits: Monitor pressure-balance cartridge, durable diverter, modern finishes.
- Pros: Long-lasting, smooth operation, stylish.
- Cons: Minimalist look may not suit traditional bathrooms.
Verdict: Best overall choice for durability and reliability. Check Price on Amazon
2. Moen Adler Tub and Shower Faucet
Who it’s for: Budget-conscious homeowners who want a simple but effective system.
- Key Benefits: Single-handle control, built-in diverter, chrome finish.
- Pros: Affordable, reliable, trusted brand.
- Cons: Basic styling compared to luxury models.
Verdict: Best budget-friendly premium faucet. Check Price on Amazon
3. Brizo Litze Tub and Shower System
Who it’s for: Luxury buyers who want designer style with flawless diverter performance.
- Key Benefits: Thermostatic control, solid brass body, multiple finishes.
- Pros: High-end design, durable diverter, precision control.
- Cons: Premium price point.
Verdict: Best premium tub and shower faucet. Check Price on Amazon
4. Kohler Simplice Tub and Shower Faucet
Who it’s for: Families who want reliability and smooth performance.
- Key Benefits: Pressure-balancing valve, strong diverter, easy installation.
- Pros: Trusted brand, smooth operation, durable finishes.
- Cons: Limited luxury finishes.
Verdict: Best family-friendly faucet. Check Price on Amazon
5. Hansgrohe Metris Tub and Shower Set
Who it’s for: Buyers who want German precision and durability.
- Key Benefits: Ceramic cartridge, strong diverter, premium finish.
- Pros: Smooth handle movement, long lifespan, stylish design.
- Cons: Higher cost than entry-level options.
Verdict: Best European-engineered faucet. Check Price on Amazon
6. Moen Weymouth Traditional Tub-Shower Faucet
Who it’s for: Those who prefer a timeless, traditional look with modern reliability.
- Key Benefits: Spot Resist finish, reliable diverter, lifetime warranty.
- Pros: Classic design, excellent warranty, durable build.
- Cons: More traditional than modern models.
Verdict: Best traditional tub-shower faucet. Check Price on Amazon
Comparison Table: Best Tub-Shower Faucets
| Faucet | Type | Special Feature | Price Link |
|---|---|---|---|
| Delta Trinsic | Tub-Shower Combo | Pressure-balance cartridge | View Price |
| Moen Adler | Tub-Shower Combo | Single-handle control | View Price |
| Brizo Litze | Luxury Tub-Shower | Thermostatic control | View Price |
| Kohler Simplice | Tub-Shower Combo | Pressure-balancing valve | View Price |
| Hansgrohe Metris | Tub-Shower Combo | Ceramic cartridge | View Price |
| Moen Weymouth | Traditional Tub-Shower | Lifetime warranty | View Price |
FAQ: Bath Faucet Diverter Problems
1. Why won’t my bath faucet switch to shower?
Usually because the diverter is clogged, worn, or broken. Mineral buildup is a common culprit.
2. Can I replace just the diverter spout?
Yes — if your tub spout has a built-in diverter, replacing it is a quick DIY solution.
3. How do I know if I need a new faucet?
If your faucet is older than 10 years, or if both the cartridge and diverter are failing, replacement is the best option.
4. Do modern faucets prevent diverter problems?
Yes — premium faucets use better cartridges, stronger diverters, and durable finishes to reduce failures.
Conclusion: Get Your Shower Working Again
If your bath faucet is not switching to the shower, the problem usually comes down to a worn diverter or mineral buildup. Cleaning, tightening, or replacing the diverter spout may solve the problem. But if your faucet is old or keeps failing, upgrading to a new tub-shower system ensures reliable performance and better water control.
The Delta Trinsic is the best overall choice, the Moen Adler is the best affordable premium option, and the Brizo Litze is the ultimate luxury upgrade.
Don’t let a broken diverter ruin your shower. Fix or replace your faucet today and enjoy a smooth, reliable bath-to-shower switch every time.