How to Fix a Bathtub Drain That Leaks When Closed

A bathtub drain that leaks even when closed can be a frustrating issue, leading to water damage and wasted water. Understanding the common causes of this problem and the steps to fix it can help you address the issue effectively and prevent further damage. This guide provides a detailed approach to diagnosing and repairing a leaking bathtub drain.

Common Causes of a Leaking Bathtub Drain

1. Faulty Drain Stopper: The drain stopper might not be sealing properly, allowing water to seep through.
2. Loose or Damaged Drain Assembly: The connections between the drain and the pipes might be loose or damaged.
3. Worn Out Gaskets or Seals: Gaskets or seals that are deteriorated or missing can cause leaks.
4. Corroded or Cracked Pipes: Corrosion or cracks in the drain pipes can lead to leaks.
5. Clogged Drain: A clogged drain can sometimes cause water to back up and leak through improperly sealed areas.

Tools and Materials You’ll Need

• Adjustable wrench or pliers
• Screwdriver
• Plumber’s tape
• Replacement gaskets or seals
• Plumber’s putty (optional)
• Bucket or container
• Towels or rags

Steps to Fix a Leaking Bathtub Drain

1. Prepare the Area

• Turn Off Water Supply: If necessary, turn off the water supply to prevent further leakage.
• Drain the Tub: Open the drain and allow any standing water to drain out. Place a bucket or container under the drain to catch any remaining water.

2. Inspect the Drain Stopper

• Check the Stopper Mechanism: Examine the drain stopper to ensure it is closing properly and forming a tight seal. If the stopper is faulty, it may need to be adjusted or replaced.
• Remove the Stopper: If needed, use a screwdriver to remove the stopper for further inspection or replacement.

3. Check the Drain Assembly

• Tighten Connections: Use an adjustable wrench or pliers to tighten any loose connections between the drain and the pipes. Be cautious not to overtighten, as this can damage the fittings.
• Inspect for Damage: Look for signs of damage or corrosion in the drain assembly. If you find any issues, you may need to replace damaged parts.

4. Replace Worn Out Gaskets or Seals

• Remove Old Gaskets: If the gaskets or seals are worn out, remove them carefully. Pay attention to their placement and alignment.
• Install New Gaskets: Install new gaskets or seals in their proper positions. Make sure they are seated evenly and securely.

5. Apply Plumber’s Putty (Optional)

• Apply Putty: For extra sealing, you can apply plumber’s putty around the drain flange before reassembling the drain. This helps to create a watertight seal.
• Reassemble the Drain: Put the drain assembly back together, ensuring that all parts are aligned correctly and tightened securely.

6. Test for Leaks

• Turn On Water Supply: If you turned off the water supply, turn it back on and allow water to flow into the tub.
• Check for Leaks: Monitor the drain area for any signs of leakage. If leaks persist, you may need to recheck the connections, gaskets, or stopper.

Additional Tips

1. Regular Maintenance: Perform regular maintenance checks on your bathtub drain to identify and address any issues early.
2. Avoid Harsh Chemicals: Use mild cleaners to prevent damage to the drain components and seals.
3. Consult a Professional: If you’re unable to resolve the leak or if you encounter significant damage, consider consulting a professional plumber for assistance.

Conclusion

A bathtub drain that leaks when closed can be caused by various factors, including faulty stoppers, loose connections, or worn-out gaskets. By following the steps outlined above, you can effectively diagnose and repair the issue, ensuring a watertight seal and preventing further damage. Regular maintenance and prompt attention to leaks will help keep your bathtub drain in good working condition.