How Can I Tell If a Sprinkler Pipe Leaks Underground?

Wet or unusually green patches, erosion and a drop in pressure while a zone runs may point to a buried lateral-line leak. Water collecting after rain can instead be a drainage issue.

Sprinkler Master illustration about underground sprinkler leak signs

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Signs worth checking above ground

Watch for a soggy or unusually green strip, bubbling soil, erosion or heads that lose pressure only while a zone runs. Note whether the wet spot follows irrigation or a rainstorm; storm runoff may call for drainage work instead.

Inspection and repair steps

  1. Turn off the affected zone if water is escaping.
  2. Run zones one by one and narrow the wet section.
  3. Expose the damaged pipe or fitting, repair it, flush and test for leaks before backfilling.

Read about irrigation leak detection and pipe repair or browse sprinkler and drip irrigation services.

Watering and maintenance resources

Rancho Water recommends watching your water use and repairing leaks. For an account served by the district, compare the recent bill and meter behavior with the irrigation schedule while investigating.

Cost and next step

The repair cost depends on the fault, replacement parts, access and any digging or restoration needed. Ask for the proposed scope and estimate before work begins. Our sprinkler repair cost guide explains the main factors.

Related homeowner questions

Sources: Rancho Water bill, rates and water budget · Rancho Water efficiency tips.

Schedule sprinkler service

Tell us the symptom, when it occurs and which zone is affected. We can discuss the inspection and repair options for your Temecula or Murrieta area property.

Call (951) 252-4822
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