07WTM003045 53251-01 rE.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 2 Planning & Design Flow Water Meter 3/4” Water Service Line for House Main Sprinkler Shut-Off Compression Tee Spring-Loaded Pop-Up with Adjustable Nozzle Pre-Assembled Swing-Joint 1 WHY INSTALL AN UNDERGROUND IRRIGATION SYSTEM? • Conserve Water & Money – Reduce over-watering and water when evaporation levels are low. • Save Time – Enjoy a beautiful yard and spend more time doing the things you like.
07WTM003045 53251-01 rE.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 4 Planning & Design 3 MEASURE WATER FLOW You need to determine the available water flow for your sprinkler system so you'll know how many sprinkler heads can run at one time. Water flow is measured in gallons per minute or GPM. Measure Your Water Pressure • Attach an Orbit® pressure gauge (part # 53020, 91130) to an unregulated outside faucet*. Unregulated means a line without a pressure regulator.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 5 Planning & Design 4 MEASURE & DRAW PROPERTY Measure your property and create a top down view on graph paper (supplied in this guide). Make the drawing to scale. For example, each one-inch square represents 10 feet on the graph paper, or each small square = 1 foot. 40' Draw Property to Scale.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 6 Planning & Design Small Select Heads For Each Area TREE Large Voyager II® PATIO Medium Spring-Loaded Pop-Up Small Our example uses: • Voyager II® in the back yard • Spring-Loaded Pop-Up (with adjustable nozzle) in the front and side yard • Mushroom bubblers in the front flower areas DRIVEWAY TREE Medium Spring-Loaded Pop-Up Large Area Heads For large open areas such as backyards and play areas.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 7 Planning & Design 6 PLAN HEAD PLACEMENT Head to Head Coverage Proper sprinkler placement allows even watering and reduces dry patches. Proper placement requires: • Head to head coverage: Each sprinkler should spray to the head beside and across it. • Equal spacing between heads: Permits uniform water distribution. Placement Example: Good • Good Overlap • Head to head coverage Placement Example: Bad There is not enough overlap.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 8 Planning & Design Add Heads and Adjust Spacing • Add sprinklers along the sides or center to increase coverage. 7 CREATING WATERING ZONES OR STATIONS A watering zone or station consists of a group of sprinklers attached to one valve. The number of heads per zone will be determined in this section.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 9 Planning & Design QUICK REFERENCE – MAXIMUM HEADS PER ZONE ESTIMATES MAIN LINE SIZE SCH. 40 PVC WATER PRESSURE (PSI) Gear Drive 30 PSI 40 PSI 50 PSI 60 PSI Voyager II® 1 2 2 3 Saturn III® 2 2 3 4 Example – We have determined that our home has a “Main Line” size of 3/4” with a “Static Water Pressure” of 60 psi.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 10 Planning & Design 8 PLAN VALVE PLACEMENT You'll need to select a location for your main shut-off valve and the best location for the sprinkler valve manifold. Main Shut-Off Valve The Main Sprinkler Shut-Off valve is the valve that shuts off water to the entire sprinkler system. Connection to the main water supply is “downstream” of your water meter. Mark the location on your plan.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 11 Planning & Design 9 DIAGRAM PIPE LAYOUT You need to plan and draw the layout for your main sprinkler line and lines for each zone. Main Sprinkler Line Draw the Main Sprinkler Line Route Use a direct route to draw the main sprinkler line from the main shut-off valve to the front and back yard manifolds. Important: Your main sprinkler line should be 1 size larger than the water main supply line.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 12 Planning & Design Header Line Draw a header line from the manifold to each zone. Header lines will be intersected with lateral lines. Sprinkler heads should not be installed on this line. Use 1" Pipe Lateral Lines Draw lateral lines that connect the header line to sprinkler heads. These lines should be branching, not circular. Use 3/4" pipe 10 PLAN TIMER LOCATION Select a location near a power source and where it's easy to access.
07WTM003045 53251-01 rE.
07WTM003045 53251-01 rE.
07WTM003045 53251-01 rE.
07WTM003045 53251-01 rE.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 13 Installation 1 INSTALLATION This section will show you how to install your sprinkler system. 2 SYSTEM LAYOUT Marking Head and Pipe Location Begin by marking the entire layout • Use Orbit® sprinkler flags to mark each head. Painted Lines • Use ground paint to mark where sprinkler pipes will run. Important: • Refer to your local code information for any regulations about connecting to the water main.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 14 Installation Connect to Main Line Install a Slip Compression Tee Shut–Off Valve • Clean off the water service pipe (downstream from meter). Water Meter • Cut out a section of pipe – half the length of the tee. Slip Joint Tee To House • Install nuts and washers on each side of the pipe. Water Service Line • Insert the slip joint tee and tighten the nuts with a wrench.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 15 Installation 5 DIG TRENCHES Using the painted lines as your guide (see System Layout, Page 13) dig trenches to the depth required by local codes. Important: Refer to your local codes to determine how deep your header and lateral lines need to be. Always contact your local utility companies before digging.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 16 Installation 7 INSTALL MAIN LINE Use PVC schedule 40 (or other pressure-rated pipe) to connect the main shut-off valve to the valve manifold(s). Important: Use pipe one size larger than your supply line. Using pipe smaller than the main supply line will reduce your water flow and will lead to gaps in spray coverage.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 17 Installation 9 CONNECT ZONES Install Header Lines • Connect 1" pipe to each valve and run it to the assigned zone. Header Line PVC or Poly Tee PVC or Poly Cross • Use fittings (elbow, cross or tee) for each lateral line. Install Lateral Lines Fittings with Threaded Outlet • Connect 3/4" lateral lines to the header line. Lateral Line • Run lateral line to each sprinkler location. • Install Tees or Elbow at each sprinkler location.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 18 Installation 10 INSTALL RISERS & HEADS Install Risers (Without Heads) Risers are designed to bring the sprinkler head up to ground height. A wide selection of risers are available. Select the riser that best fits your needs.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 19 Installation 11 CONNECTING SPRINKLER WIRE Sprinkler wire consists of one white (common) and 4 or 6 colored strands. The sprinkler wire needs to have at least one more wire strand than the number of valves being installed. Wiring the Valves Sprinkler Wire Wire 1 Wire 2 Common Wire Common Wire White Using wire nuts and grease caps, connect the wires as shown: • Connect one wire from each valve to the white (common) sprinkler wire.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 20 Appendix A APPENDIX Chart 1 QUICK REFERENCE – MAXIMUM HEADS PER ZONE ESTIMATES MAIN LINE SIZE SCH.
07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 21 Appendix SELECTING THE BEST COMPONENTS FOR YOUR SPRINKLER SYSTEM A Sprinkler Timers The timer is the brains for your underground sprinkler system that controls when and how long to irrigate your yard. Orbit's® line of timers are known for reliability, ease of installation, programming simplicity and a 6 year warranty, making Orbit® Timers the #1 choice by homeowners. Slide Switch The easiest timer to program, with water saving features.
07WTM003045 53251-01 rE.qxd 3/2/07 2:31 PM Page 22 Appendix Pre-Assembled Valve Manifolds Orbit® valves continue to set a high standard for solid construction and reliability.
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07WTM003045 53251-01 rE.qxd 3/2/07 2:30 PM Page 28 PN 53251 Rev E Irrigation Products, Inc. 845 North Overland Road North Salt Lake, Utah 84054 USA www.orbitonline.
