Your new underground irrigation system should provide you with many years of troublefree operation providing these simple maintenance procedures are followed:
Spring Start‐up Procedures:
- Close all drain valves located at each grouping of control valves.
- Close all the petcocks on the vacuum breaker. This is the piece of equipment that appears above ground.
- Close the drain located in the pit where the water line was “tapped”.
- Open the supply valve very slowly. This valve is also located in the pit where the tap was made.
- Open the ball valves on the vacuum breaker to energize the mainline. These should be opened slowly.
- If your controller is equipped with a battery, replace it. Set the time, day and date. Program each station’s time according to the averages listed in Item #3 under “General Notes”.
- Run through the entire system to assure proper working conditions and to check for leaks.
- Inspect heads and nozzles for proper coverage and working condition.
- Clean any dirty nozzles or filter screens.
- Inspect components for damage due to lawn maintenance problems.
- Perform all weekly procedures.
- Adjust times on controller to compensate for different temperatures and precipitation each month.
- Run through the controller to assure proper working condition
- Perform all monthly procedures.
- Inspect all components (heads, valves, etc.) to assure proper working condition.
- Adjust heights of heads to accommodate fluctuations in turf height.
- “Start‐Up” and “Winterize” system (see detailed explanations).
- Close the main supply.
- Connect the air compressor to the service tee located on the vacuum breaker.
- Turn the controller to the station #1 and start compressor.
- Force air through station #1 until the water has been blown out. Continue the process through stations #2, #3, etc. until all stations have been blown out completely.
- Open all drain valves and petcocks on the vacuum breaker.
- Turn off the controller but allow to run so that lubricants stay on clock motors.
- While your system can be drained without blowing it out, we recommend blowing it out with compressed air. This removes all water and relieves the stress that ice causes in our harsh climate.
- It is important to repair any malfunctioning equipment as soon as possible especially during the hot mid‐Summer months.
- Check for spots that appear to be dry. The sooner these are corrected, the less
damage there will be.
- Spray heads apply more water than rotary heads in the same amount of time. Therefore, these stations will need to run for a shorter period of time. Average station times are as follows: Drip zones 45‐60 minutes, Spray Zones 20‐30 minutes, Rotary Zones 30‐45 minutes. These times are only averages and will vary depending on the time of season, plant material type, wind and soil conditions.
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