Quick answer: Water in a sprinkler valve box can come from normal groundwater or drainage, but persistent water during or after irrigation may indicate a leaking valve, fitting or pipe connection. The timing of the water is an important clue. When standing water may not be a valve leak Valve boxes are open to the…

Quick answer: A buzzing irrigation valve usually means the solenoid is being energized but something about the electrical supply, solenoid or valve operation is abnormal. Buzzing alone does not prove the entire valve needs replacement. Possible causes Solenoid is failing or mechanically struggling Voltage reaching the valve is inadequate or unstable Field-wire connection has excessive…

Quick answer: Yes. Many irrigation valve problems can be repaired without replacing the entire valve. Whether repair makes sense depends on which component failed, the valve’s condition, accessibility, and whether the body or internal parts are damaged. Parts that may be serviceable Depending on the valve design, a failed solenoid, diaphragm, spring, bonnet or other…

Quick answer: A sprinkler valve that keeps running may be held open by debris, a damaged diaphragm, a solenoid or bleed mechanism that is not seated correctly, or an electrical/controller problem that continues sending power to the valve. First determine whether the problem is hydraulic or electrical If the zone keeps running after the controller…

Quick answer: A failing irrigation solenoid can cause a zone not to open, operate intermittently, buzz, or fail electrical testing. Because similar symptoms can come from wiring or the valve itself, the solenoid should be tested rather than replaced solely on symptoms. Common solenoid symptoms One zone will not run while other zones work Buzzing…

Quick answer: A bad irrigation valve may fail to open, fail to close, leak, buzz, operate intermittently, or cause weak flow to an otherwise normal zone. Proper diagnosis separates the valve itself from controller, wiring, solenoid and water-pressure problems. Common symptoms Zone will not turn on Zone stays on after watering should stop Water seeps…