Designing a Residential Irrigation System

Slide 1 Designing a Residential Irrigation System Slide 2 Client Interview Expectations? Begin with the end in mind Cost How much do they have to spend? Can they manage the system themselves. Cost of power and water What is the client’s tolerance level for overspray etc. ? Slide 3 Site Plan – Plot Plan Can be RPR, Aerial photo, drone photo and measurements Must include property boundaries and http://www.albertageo.com/drupal/?q=services/real-property-reports From : REAL PROPERTY REPORT Slide 4 Site Plan - Elevations Lot Grading Plan https://www.edmonton.ca/business_economy/documents/ResidentialGuidelines.pdf Slide 5 Site Plan Soil Types texture Infiltration Profile (any perch or drainage issues) Environment Wind – direction and speed Microenvironments – wind tunnels, shade, low areas, slopes (including aspect) Show drainage patterns (indicate on plan with arrows) Slide 6 How water moves through soil Slide 7 Site Plan - existing plantings or planting plan Record all existing plantings or get a landscape planting plan Note density and anything low to the ground that may inhibit spray pattern Check what the ground cover is Bare soil?? Mulch?? http://greentreelandscapes.com/ http://www.mcloughlincontracting.ca/#!portfolio Slide 8 Design Capacity Check Water Source Potable Water (drinkable) Note location of the water source Record the water meter size, service line size Determine the static water pressure Determine flow rate Nonpotable Water (dugouts, rivers etc) Check water quality ( may need extra filtration) determine pump capacity Check Power Source Location and voltage Check Local Codes Type of backflow prevention device Watering windows Slide 9 Other Costs Time Has the homeowner requested that you only work at certain times Is there a tight deadline for the project Are you working with a landscape company or other company Soil and Water Is the soil rock or is there other impeding factors like construction debris Is there a high water table Is the topography extra steep or uneven Specialty Material Does the system require a pump or booster pump Is extra filtration needed because of water quality Do you need to include sleeves to work through hardscapes Slide 10 Sprinkler Layout start with a straight line, usually the longest measure the width and distance to find the largest sprinkler that will fit without over spray aim for head to head coverage or slightly closer put a sprinkler head in every inside corner add sprinklers to area maintaining head to head coverage as much as possible. There should be a minimum of 2 sprinklers covering each area. Ideally 3-4 Choose a model of sprinkler that has enough variation in nozzles to supply all sprinklers in one area. Do NOT mix rotors and spray heads. Be EFFICIENT, EFFECTIVE and think ECONOMICALLY Slide 11 Sprinkler Layout http://cdprolandscaping.com/Willamettevalleylawncare.com/irrigation-sprinkler-installation-eugene-oregon.php Slide 12 Hunter Residential Design https://www.fullersoutdoor.com/sprinkler-systems Slide 13 http://delobiz.co/designing-irrigation-system-for-home/ Slide 14 Sprinkler Selection - water system layout example http://www.watertips.com/info/layout.htm Slide 15 Slide 16 gbrowndesign Slide 17 Slide 18 L-2 Irrigation System Design Slide 19 I-25 ROTARY SPRINKLER INSTALLATION DETAIL