PER (cross-linked polyethylene) pipe is widely used in sanitary and heating installations because of its flexibility and strength. However, like any material, it can be subject to leaks caused by poor installation, accidental drilling or premature wear. Here are professional methods for effectively repairing a leak in a PER pipe.
Identifying the type of leak
Before any intervention, it is crucial to determine the origin and extent of the leak. It may come from :
- A loose or faulty connection
- Accidental tube perforation
- Cracks caused by frost or excessive pressure
- Abnormal wear on a friction zone
A thorough inspection allows us to adapt the repair method accordingly.
Tools and equipment required
To carry out a lasting repair, you will need :
- PER pipe cutter for a clean cut
- Slip-on pliers or PER fitting pliers
- Compression or crimp fittings to suit your installation
- Hammer and chisel if access is difficult
- A clean cloth to dry the area
Repair techniques by leak type
Repairing a leak in a fitting
- Shut off the water supply and drain the pipes
- Loosen the defective fitting using a suitable wrench
- Check the condition of the tube and cut off the damaged part if necessary
- Replace a new fitting by following the crimping procedures.
Tube perforation repair
For small holes (less than 5mm) :
- Dry the affected area thoroughly
- Apply a special PER repair sleeve
- Tighten evenly according to manufacturer’s instructions
For more extensive damage :
- Cut the damaged section with a pipe cutter
- Insert a repair fitting with two seals
- Tighten gradually, checking for leaks
Precautions and post-repair checks
After any intervention :
- Perform a progressive pressure leak test
- Check for leaks for 24 hours
- Protect sensitive areas with insulating sleeves
- Check the repaired area regularly over the following days
When to call in a professional?
Some situations require expertise:
- Multiple leaks on the same line
- Hard-to-reach piping
- Doubts about the quality of existing connections
- Heating system involved
Our qualified plumbers use professional equipment for fast, guaranteed service.
Conclusion
Repairing a PER pipe requires precision and the right tools. While some minor leaks can be dealt with by DIY, complex cases require professional know-how to avoid recurrence. A well-executed repair ensures the longevity of your sanitary installation.
For reliable work on your PER system:
Leader Services – Plomberie
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