2.1 SPRING START UP OF IRRIGATION SYSTEM 2.1.1 Install backflow preventor (if it has been removed for winterizing.) Close all backflow preventor drain valves and testcocks. 2.1.2 Close main drain valve in control room and close emergency solenoid and manual drain valves under platform. 2.1.3 Open water supply valve in water meter pit. Turn on power to controller; replace batteries as necessary, set clock to proper date, day and time. 2.1.4 Operate controller to turn on each zone for 10 minutes while inspecting its operation including: inspecting the patterns and throw of each head and checking the zone valve and heads for leaks. Adjust spray patterns of all sprinkler heads as required to provide complete and adequate coverage of areas to be watered. Straighten any and all leaning heads. Mark any faulty equipment with installation flags. 2.1.5 Turn off the system following full inspection and make all necessary repairs or adjustments. Itemize and identify all items to be replaced. All new items shall be same make and model as those being replaced. 2.2 FALL SHUT DOWN OF IRRIGATION SYSTEM 2.2.1 Shut down of the irrigation system shall include draining all water from all main lines, zone lines and all irrigation lines, blowing out entire system and shutting down the controller. 2.2.2 Close water supply valve in water meter pit. 2.2.3 Open main drain valve in control room and open emergency solenoid and manual drain valves under platform. 2.2.4 Connect a low pressure (not over 100 psi), air compressor to a quick coupler downstream for backflow preventor. Pressure should be increased slowly not to exceed 80 psi with a valve always opened. Blow out only valve at a time starting with the valve furthest from the controller. Run compressed air for 2-3 minutes only while inspecting the heads to be certain that all lines are being blown out when complete, repeat blowing of all heads. 2.2.5 Turn off the controller when all lines are blown out. Set controller to the “OFF” position or “RAIN” position. 2.2.6 Remove backflow preventor and contact the City of Hartford Parks Department for storage location.
