[. . . ] No external power source needed Ideal for remote locations and drip irrigation Full waterproof construction Easy-Set LogicTM Programming Notice: The information in this manual is primarily intended for the user who will establish a watering schedule and enter that schedule into the sprinkler timer. This product is intended to be used as an automatic sprinkler timer to be used near the valves, typically underground in a valve box, as described in this manual. [. . . ] After all pipe and fittings have been installed, turn the water supply on and check for leaks with the valve closed. The system is now ready to be controlled electrically from the timer or manually by opening the manual lever/screw. If static water pressure exceeds 80 psi, a pressure regulator should be used. refer to the Orbit® Layout Guide or local dealer to recommend proper drain points. To insure the electric valve is completely drained in the fall, turn off the main sprinkler shutoff valve and electrically run each valve dry for a few minutes. Where possible, always protect valves with an Orbit® Valve Box and place gravel in the bottom. ⷠTest all lines and fittings before burying the system. ⷠUse a filter if you will not be using culinary water in your system. This timer will only operate with DC solenoids that have been included in the package. Replace any original solenoids on valves connected to the timer with these DC solenoids. [. . . ] One station is stuck on and will not shut off: Clean any particles of dirt or debris stuck in valve or solenoid. Stations continue to turn on and off when they are not programmed to: 1. [. . . ]