Quick answer: Water appearing after the irrigation system turns off can be normal low-head drainage, or it can indicate a valve that is not sealing completely. The key distinction is whether the flow gradually stops or continues long after the zone should be depressurized. Low-head drainage Water remaining in lateral piping can drain through the…

Quick answer: Underground sprinkler leaks often reveal themselves through persistently wet soil, erosion, bubbling water, a weak irrigation zone, unusually green patches, or water surfacing only while a particular zone runs. Finding the affected zone first can greatly narrow the search area. Run zones one at a time Operate each zone separately and observe changes…

Quick answer: Low pressure on only one irrigation zone usually means the restriction or water loss is specific to that zone. Common causes include a leak, partially opening valve, clogged valve or filter, too many or incorrect nozzles, damaged piping, or multiple failing heads. Compare the affected zone with the rest If other zones have…