Attach its hose to the sprinkler zone control valve. Use an air pressure setting of 40 to 80 ... You should have manual release valves located at the ends of the pipes and in any low points.

Wearing goggles to protect your eyes, slowly release each valve to let the ... Not every sprinkler system is designed to handle this amount of pressure either, so the manual should also be consulted.

NAMPA, Idaho — City of Nampa irrigation customers can anticipate accessing full water pressure by the end of April, as irrigation districts plan to release ... own shut-off valves for sprinkler ...

Researchers from China's Northwest A&F University have developed a novel drip irrigation system ... Once a certain pressure is reached, a valve opens, releasing the stored water in pulses.