How to Fix a Leaking Pipe Joint
Quick Answer
Turn off the water, dry the joint, apply pipe joint compound or PTFE tape, and tighten the connection.
How to troubleshoot a Leaking Pipe Joint
A leaking pipe joint can cause water damage. This guide covers tightening the joint, applying pipe dope, or using a compression fitting repair kit.
Step-by-Step Fix
- Turn off the water supply to the leaking pipe at the nearest shutoff valve.
- Dry the joint thoroughly with a cloth to ensure a good seal.
- For threaded joints: unscrew the joint, clean the threads, apply PTFE tape clockwise 3-4 wraps, and reassemble.
- For compression joints: tighten the compression nut slightly; if it still leaks, replace the ferrule.
- Turn the water back on and check for leaks around the repaired joint.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Joint still leaks | Damaged thread or ferrule | Replace the fitting or call a plumber. |
| Pipe cracks | Overtightening | Use less force and replace the cracked pipe if necessary. |
Frequently Asked Questions
Can I use PTFE tape on all pipe joints?
It is suitable for threaded joints but not for compression or soldered joints.
What is pipe joint compound?
A paste that seals and lubricates threaded joints for a watertight seal.