One of your irrigation zones may continue to run or might be stuck on even with your controller unplugged. The valve running without a signal from the controller is an indication that there is debris inside the valve. Here are some tips for valve repair. …

Water enters the valve from the system main line and exerts a force against the center of the valve’s diaphragm. A small orifice in the diaphragm allows the water to flow through to the upper chamber between the diaphragm and the bonnet. The water …

The flow control knob works very similar to a hose bib or gate valve as its main function is to either fully allow or restrict the amount of water passing through the valve. The main difference is that the flow control limits the diaphragm's stroke, …

There are two ways to bleed a zone valve for manual operation: … One way is to simply turn the solenoid (the black cylinder with 2 wires) counter-clockwise a 1/4 to 1/2 turn. To shut off the valve, twist the solenoid clockwise until it is snug on the …

Valve Bonnet Flow Control handle Bleed Screw Solenoid Diaphragm Supprt Ring Diaphragm Diaphragm Spring Most irrigation valves are designed to close within 10 to 20 seconds of the solenoid deactivating. The most common reason why a valve would close slower …

The most common reason for a valve to remain on, or weep, is debris. New installations without proper flushing, recent mainline repair, or well water can cause debris to flow into the valve and get caught between the diaphragm and the seat.  …    It's …

Over the last few years we've had several customers call with questions regarding the effects of oil-based pipe dope compounds on the threads of Hunter sprinklers. In case you were unaware, the two are not meant to go together and the end result is …

Simply twist the solenoid on the valve counter clockwise 1/4 turn to 1/2 a turn. To shut off the valve, twist the solenoid clockwise until it is snug on the valve.   … How do I manually open a zone control valve without using the …