How to Repair a Lateral PVC Irrigation Line

Repairing a lateral PVC irrigation line can seem daunting, but with the right tools and a step-by-step guide, you can tackle the task efficiently. This guide will walk you through the process of repairing a broken or damaged lateral PVC irrigation line.

Tools and Materials You’ll Need

  • PVC pipe cutter or hacksaw
  • PVC pipe (matching the diameter of your existing line)
  • PVC couplings or repair fittings
  • PVC primer and cement
  • Measuring tape
  • Marker or pencil
  • Safety gloves and glasses

Step-by-Step Repair Guide

Step 1: Identify the Damage

First, locate the specific area of the lateral PVC line that needs repair. Look for visible cracks, breaks, or leaks when the system is running. Mark the damaged section with a marker or pencil.

Step 2: Turn Off the Water Supply

Before any repair work begins, ensure the water supply to the irrigation system is completely turned off. This will prevent any water from flowing through the pipes during the repair process.

Step 3: Cut Out the Damaged Section

Using a PVC pipe cutter or hacksaw, carefully cut out the damaged section of the pipe. Make sure your cuts are straight and clean. Remove any burrs or rough edges with a deburring tool or sandpaper.

Step 4: Measure and Cut the Replacement Pipe

Measure the length of the removed section of PVC pipe. Cut a new piece of PVC pipe to match this length, ensuring the cuts are straight and precise.

Step 5: Prepare the Pipe and Fittings

Dry-fit the replacement pipe and PVC couplings or repair fittings to ensure they fit correctly. Once satisfied with the fit, use PVC primer to clean both the ends of the new pipe and the insides of the fittings. This ensures a strong bond.

Step 6: Apply PVC Cement

Apply a generous amount of PVC cement to the primed ends of the pipe and the insides of the fittings. Quickly join the pipe and fittings together, twisting slightly to evenly distribute the cement. Hold them in place for a few seconds to allow the cement to set.

Step 7: Allow the Cement to Cure

Refer to the PVC cement manufacturer’s instructions for the recommended curing time. It’s crucial to let the cement fully cure before turning the water supply back on to prevent any leaks.

Step 8: Test the Repair

Once the cement has cured, turn the water supply back on slowly and check for any leaks in the repaired section. If there are no leaks, your repair is complete!

Tips for a Successful Repair

  • Always wear safety gloves and glasses to protect yourself from any sharp edges and chemicals.
  • Ensure all connections are completely dry before applying primer and cement.
  • Work quickly but carefully when applying cement, as it dries fast.
  • Double-check measurements before cutting to avoid any mistakes.


By following this guide, you’ll be able to repair your lateral PVC irrigation line effectively, ensuring your irrigation system continues to run smoothly.


If you have any questions or need any type of sprinkler system repair, the experts at Houston Sprinkler Repair will be glad to help. Give us a call or 346-642-6161 to set an appointment.

How to Repair a Lateral PVC Irrigation Line
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