If you have a Delta shower faucet leaking from the diverter, you’re not alone. A leaky diverter is one of the most common bathroom plumbing problems. The diverter is the part that redirects water from the tub spout to the showerhead — and when it wears out, you’ll see water leaking from the spout even when the shower is on. The good news? It’s usually fixable with a simple repair, or you can replace the faucet for a long-term solution.
What Is a Diverter and Why Does It Leak?
The diverter is typically built into the tub spout or the faucet valve. Its job is to block water flow to the tub spout when you switch to shower mode, forcing water up to the showerhead. Leaks happen when:
- Rubber seals wear out – Over time, washers and O-rings deteriorate.
- Mineral buildup occurs – Hard water deposits prevent the diverter from sealing properly.
- Cartridge issues – In some Delta models, the cartridge also affects diverter performance.
- Old or corroded parts – After 10–15 years, replacement is often the best solution.
Signs Your Diverter Is Failing
- Water continues to run from the tub spout when the shower is on.
- Poor water pressure from the showerhead.
- The diverter handle feels stiff, loose, or stuck.
- Leaks around the faucet handle or trim.
How to Fix a Leaking Delta Diverter
Before replacing the entire faucet, try these repair steps:
- Turn off the water supply. Always shut off water before disassembling the faucet.
- Remove the tub spout or diverter handle. Depending on your model, the diverter may be in the spout or built into the valve.
- Inspect the diverter parts. Look for cracked washers, worn seals, or mineral deposits.
- Clean or replace the diverter. Soak parts in vinegar to remove buildup, or install a new diverter kit.
- Reassemble and test. Turn water back on and check for leaks.
Tip: If your Delta faucet is older than 10 years, a full faucet replacement may be more cost-effective than ongoing repairs.
When to Replace Instead of Repair
You should consider replacing your shower faucet if:
- The leak persists after replacing seals or the diverter.
- The faucet is outdated or corroded.
- You want a style or performance upgrade.
Best Replacement Delta Shower Faucets
Delta Windemere Tub and Shower Faucet
Best Overall Choice
- Includes tub spout with diverter, showerhead, and trim kit.
- WaterSense certified for water efficiency.
- Classic bronze, chrome, and stainless finishes available.
Pros:
- Durable and reliable
- Great for replacing old Delta models
- Stylish traditional design
Cons:
- Valve sold separately
- Basic showerhead performance
Verdict: A reliable replacement for leaky diverters. Check Price on Amazon.
Delta Trinsic Modern Shower Faucet
Best Modern Style
- Single-handle faucet with diverter spout.
- Available in matte black, chrome, and stainless finishes.
- Sleek, minimalist design fits modern bathrooms.
Pros:
- Modern styling
- Consistent water control
- Durable finish options
Cons:
- Valve sold separately
- Not as budget-friendly
Verdict: A stylish replacement with precise temperature control. Check Price on Amazon.
Delta Ara Pressure Balance Shower Faucet
Best Premium Pick
- Pressure-balancing valve ensures consistent water flow.
- Angular, modern design for luxury bathrooms.
- Top-tier Delta engineering for durability.
Pros:
- Luxury design
- Excellent water control
- High-end build quality
Cons:
- Premium pricing
- Professional installation recommended
Verdict: A high-end choice for bathroom remodels. Check Price on Amazon.
Comparison Table
| Faucet | Key Features | Style | Price |
|---|---|---|---|
| Delta Windemere | Classic diverter tub + shower kit | Traditional | $$ |
| Delta Trinsic | Modern single-handle, diverter spout | Contemporary | $$$ |
| Delta Ara | Premium pressure balance, modern design | Luxury | $$$$ |
FAQ
1. Why is my Delta tub spout leaking when the shower is on?
This usually means the diverter inside the tub spout is worn or clogged with mineral deposits, preventing a full seal.
2. Can I just replace the diverter on my Delta faucet?
Yes. Many Delta models allow you to replace just the diverter spout or kit without changing the whole faucet.
3. How long does a Delta diverter last?
Typically 7–10 years, depending on water quality and usage.
4. Do I need a plumber to replace a diverter?
If it’s a simple spout replacement, many DIYers can handle it. For valve-integrated diverters, professional help is recommended.
Conclusion
If your Delta shower faucet is leaking from the diverter, start with a simple fix: clean or replace the diverter spout. If the faucet is old or the problem persists, replacing the entire faucet system is the best solution. Modern Delta faucets not only stop leaks but also improve style, water efficiency, and performance.
Ready to stop the leak? Shop Delta shower faucets on Amazon and upgrade your bathroom today.