It identifies the major types of standard heads, gives their uses and gallons per minute (GPM), tells what patterns are available, and suggests correct spacing requirements. STEP THREE: Select and position your sprinkler heads.Ī. Step 3: Select & Position Sprinkler Heads. Indicate water supply locations: spigots, well, water service entrance, etc.

Shade in all area to be covered by water: lawns, shrubbery, special grounds, etc.Ĭ. Include location of house, driveways, walkways, paths, fences, walls, structures, planters, patios, flower beds, shrubbery and lawn areas (see diagram 1)ī. Use a Planning Grid to Make an Accurate Scale Layout of Your Property.Ī. High hazard conditions exist where a fertilizer injector is installed. Determine backflow prevention device requirements of city or water system. A cross connection creates the possibility of back siphonage or contamination of potable water, and a backflow preventer is a must. Look up service line size from following chart.į. Measure the length of string required to encircle it. Wrap a piece of string around the outside of the service line. Inside diameter of pipe (service line) running from water meter or pump to house. Call city hall or your local building department.Į. Plumbing regulations, building permits needed. Example: if it takes 30 seconds to fill a 5 gal. Use the following formula to determine gallons per minute (GPM): divide the container size (in gallons) by the seconds it takes to fill the container and multiply by 60. or other known quantity bucket) and note pressure on pressure gauge on the side of the pressure tank. Gallons per minute Use chart below if you have city water or if you have a pump use the following: Run hose bib until pump turns on, then measure gallons per minute (the time it takes to fill a 5 gal. If you have city water call your local water department or use pressure gauge on garden valve output nearest area to be watered-no water should be running in or around the house.Ĭheck meter or call local water department.Ĭ. We recommend if it is a large or complex system, you should get the help of a Certified Irrigation Designer or a qualified landscape architect. The process would be the same, except that a controller, automatic valves and wire are necessary to operate an automati-cally control-led system. Step 1: Gather Informationĭecide whether you want a manual or auto-matic system. The steps would be much the same for most any irrigation system:Ĥ. This guide is a general approach on how to design and install a home landscape irri-gation system.

Lawn sprinkler system designer