Turf Sprinkler Irrigation

1. Turf Sprinkler Irrigation

2. Trenching for turf system mainlines and laterals

3. A 3-inch mainline supplying a 2 ½-inch lateral

4. Swing arm plumbing for large turf sprinkler head

5. A plumbed sprinkler head ready for wiring and backfilling

6. Hunter® valve-in-head turbine driven rotor sprinkler P= 70 psi qs=50.5 gpm Dw=170 ft P= 80 psi qs=53.5 gpm Dw=176 ft P= 90 psi qs=57.4 gpm Dw=180 ft P=100 psi qs=59.5 gpm Dw=184 ft #53 (53/128”) range nozzle + #24 (3/16”) spreader nozzle

7. Valve-in-head sprinkler

8. Wire to connect controller to valves Individual “Hot” wires (Red; typically 14 AWG) to each valve A single “Common” wire (White; typically 12 AWG) for all valves

9. Gel-filled waterproof connector cover for buried wire splices

10. Bundling extra wire to ease future repair operations

11. Newly back-filled turf head

12. Low pressure drain for lateral lines

13. Adapter for “Funny Pipe” riser and low pressure drain

14. Small turf head with “Funny Pipe” connector attached

15. 4.6 Home Landscape Irrigation 4.6

16. Separate meter for home landscape irrigation system Irrigation rate for city water (no sewer charge) Meter Size, inches5/8¾1 Maximum Capacity, gpm 20 30 50 Recommended Capacity, gpm 15 22.5 37.5

17. ¾-inch Electric Diaphragm Valve

18. Golf Course Irrigation Zones Different zones because of differences in- • Turf varieties: bent, bermuda, etc. • Soils: sand-based greens, native soil fairways • Traffic load: tee boxes, greens, walk-up areas • Canopy maintenance: fairways, rough

19. Golf Course Irrigation Zones - Putting Green Zone -Tee Box Zone - Walk-up Area Zone - Fairway Zone

20. Lateral Line Layout for Parallel Fairways (2 conventional sprinklers per valve) Mainline Supply Valve Water Flow

21. Looped Supply Lines on Parallel Fairways (Valve-in-Head Fairway and Tee Box Sprinklers) (Conventional Green Sprinklers)

22. Fairway Runoff Research Plots at OSU Turf Research Farm

23. Effect of Slope and Sprinkler Leveling on Coverage Sprinkler axis perpendicular to ground slope Sprinkler axis vertical

24. Irrigation Control Software

25. Adjustment of Watering Time Watering time can be increased or decreased according to prevailing water use conditions (ET). ET can be taken from a weather station on site provided by the supplier, or taken from some generic source (eg., Mesonet). Adjustments can be system-wide, or for any subset of zones within the system.

26. The terminology and capabilities of each controller/software package will vary. On-the-job training (RYFM) and/or a training seminar from the manufacturer will be necessary.

27. Irrigation Timing The ON/OFF timing of the irrigation system must be coordinated to avoid interference with play, mowing, and other maintenance while not exceeding the capacity of the water supply.

28. Time and Flow Rate Constraints (Q t = kv A d) Most controller software will allow you to program in constraints of available water flow rate. Once you program the on time for each zone, the controller will sequence the zones to maintain total flow within the constraint. A graphical output will show the time required to determine if irrigation will be completed within the available time.

29. Record Keeping Most controller software can also be programmed to maintain a history of on times, depths applied, gallons pumped, etc. These data can be extremely helpful in budgeting, troubleshooting and other management decisions.

30. Antenna Transmitting Signals from Main Controller to Satellites

31. Typical Satellite Irrigation Controller

32. Electronics Linking Satellite Controller to Main Controller

33. Connections from Zone Valves to Satellite Controller 24-volt AC hot wires from each zone valve on 3 holes Common wires from 3 holes

34. Completed valve-in-head sprinkler installation ready for back-filling

35. Valve-in-Head Sprinkler Components Housing/Case Main Nozzle Rotor Cover Spreader Nozzles Water supply tube for valve operation Solenoid

36. Large Turbine-Driven Rotor Sprinkler for Fairway Irrigation

37. Diaphragm Valve (24-v. AC) to Control a Multiple-Head Zone

38. Electrically Operated Diaphragm Valve Cutaway Solenoid Solenoid plunger Port carrying pressurized water to inflate diaphragm Port allowing water trapped behind diaphragm to be vented Optional flow control screw adjustment Diaphragm Valve seat Spring

39. Manual flow control adjustment Internal/external bleed port 24 VAC solenoid 1-inch Electric Diaphragm Valve w/ Flow Control

40. 24-VAC Solenoid Auto Manual Drain Bleed Port Valve Valve Cap Diaphragm Solenoid Plunger & Drain Port Seal Pressurization Port Spring Valve Body Drain Port Valve Seat Water Flow

41. Topside Manual External Bleed Valve Pressurization Port Auto Bleed Port Cap UndersideDiaphragm Diaphragm Valve Seal

42. Inexpensive 4-zone controller with transformer

43. Lateral Lines Conventional Sprinklers Electric Valve Control Wiring Valve-in-head Sprinklers Controller Mainline Turf Sprinkler Control

44. Pumping Plant Installations Water Power Security Access

45. Vertical Turbine Surface Water Pumping Station Allowable water level fluctuation Pond Intake Gallery Pump Well

46. Typical Golf Course Pump House

47. 60-HP Holloshaft Motors on Vertical Turbine Pumps

48. Electric Pump Control Panel • A complex control panel to operate and protect an electric irrigation pump may include: • over-current protection • phase protection • lightning arrestors • computerized control for: • soft start • reduced speed operation

49. Computerized Motor Control Computerized motor control allows soft starts, which reduce the current flow when the motor rotor is not yet up to full speed. Computerized control can also artificially alter the frequency of the electric supply, allowing the motor to operate at speeds other than nominal synchronous speeds (3600, 1800, or 1200 RPM).

50. Computerized control panels can log performance data