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How to Find Sprinkler Lines


Published on August 19, 2024
How to Find Sprinkler Lines

Successfully locating a sprinkler system’s underground lines can present a significant challenge, particularly if you’d like to avoid digging everything up. Whether installing new landscaping and hardscaping, such as pools or patios, or repairing sprinkler system leaks, knowing how to find sprinkler lines could prove helpful. Not only will it save you time and money but it could also help you prevent unintended damage.

Here, American Irrigation Repair shares how the team finds sprinkler lines without causing unnecessary disruption to lawns and the irrigation system.

Why Locating Sprinkler Lines is Important

There are essential reasons behind seeking a precise location of the property’s underground sprinkler lines. For one thing, digging or installations on your property that interfere with your system’s lines can compress or puncture those lines, leading to expensive repairs and the risk of water damage.

It’s also helpful to immediately locate lines to remedy:

As experts like American Irrigation Repair will tell you, locating lines with precision is the first step to handling this sort of work efficiently. After all, causing unnecessary property damage is something everyone wants to avoid! 

Methods for Locating Sprinkler Lines

So, what are the methods professionals use to locate underground sprinkler system lines?

Check for a System Map

While it might seem obvious, the easiest method for quickly locating sprinkler lines is to refer to a system map. Installation companies often prepare a detailed map that shows the exact location of sprinkler heads and service lines. When properly drafted, these maps provide accurate measurements from building foundations, curbs, and fixed property markers.

Have you lost your system map? Are you unsure if you received one when you installed the system or when you bought the property? Try contacting the company that installed the system for a duplicate map. 

Look for Sprinkler Heads

Do you know how to find sprinkler lines? Well, lines always connect to sprinkler heads. In the absence of a map, the sprinkler heads’ locations provide you with great clues as to the location of any underground lines.

A technician might approach this process by marking the position of each sprinkler head to trace the approximate path between them. Installers usually run straight lines between each head, forming a grid (unless there are some obstructions or other reasons to deviate from straight lines). A grid formation is the most efficient distribution system, and you can easily mark these lines between sprinkler heads with flags or spray paint.

Find Valve Boxes

Valve boxes are another essential component of your property’s sprinkler system. The boxes house the valves that control water flow to each zone of your irrigation system. Installers usually place valve boxes close to buildings or sprinkler heads in a round lid mounted flush with the ground. 

When repair technicians locate a valve box, they can trace lines from valves to nearby sprinkler heads. (Some valve box designs place them below the surface, so you would carefully dig around it to expose the box without damaging the lines that connect to it).

Use a Line Tracer

As its name suggests, a line tracer is an electronic device that helps locate underground lines without extensive digging. Knowing how to find sprinkler lines with a tracer is quite simple: 

  • You send an electronic signal through the wires that run alongside sprinkler lines. 
  • A receiver picks up the signal.
  • The tracer interprets the signal, indicating the precise path of the sprinkler lines.

This technology is helpful with older irrigation systems that lack a reliable system map.

Probe for Sprinkler Lines

Have you thought about using a probe to locate underground sprinkler lines? The probing tool enters the soil to feel for resistance from pipes buried under the surface.

It’s low-tech, and you must exercise caution to avoid damaging buried lines.

Ground Marking Techniques

One final technique is ground marking, a straightforward sprinkler line location method that involves digging around sprinkler heads or valve boxes to locate a section of the pipe. After the dig exposes a line, mark its path with flags or spray paint. 

This process is time-consuming. It requires a good bit of digging in precise locations, but it does offer certainty in your search for water lines.

Contact American Irrigation Repair for Complete Sprinkler System Maintenance Today

That’s how to find sprinkler lines. As you can see, some professional assistance would come in handy to leverage the technology and tools needed for precise sprinkler line mapping. 

Serving property owners around Georgetown, Round Rock, and Austin, Texas, since 1997, American Irrigation Repair offers award-winning service and risk-free system analysis. Call (512) 943-6080 today to schedule service or learn more!

Devynn Photo, Owner photo
About The Author

Justin Wilson

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The technicians were on time, friendly, knowledgeable and professional. Thank you for great service.
Dale H.
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Brandon did an excellent job inspecting all facets of my irrigation system and also cleaned, lubricated and insulated my main valve box valves for winter. Excellent work and service provided!
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Very happy with this company and their technicians Brandon and Elias. Highly recommend them!
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Scheduling with them was very easy. During their visit, they worked quickly ro find and fix the issue, keeping me updated along the way.
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Very Knowledgeable and showed us true picture of current patterns. Also added additional heads as requested. Overall cannot go wrong with this group and American Irrigation.
Sam A.
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Very professionals and fast installation left the site spotless thank you American Irrigation for the best service
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Always quick service and resolution. Thanks.
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Good work. Made recommendations on adjusting sprinkler system
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Good experience with American Irrigation!Booking was quick, team arrived on time, onsite worker explained everything they would be doing and at the end what was accomplished. I found the work was done with excellence and I will use them again (hopefully not for more broken pipes or timer problems!).Give yourself a gift of worry-free drip and sprinkler system operations/repair and have American Irrigation do the work!The costs were very reasonable.
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Agustin and Wilfredo —Performed the inspection and maintenance of irrigation system. They did a terrific job, keeping me apprised of the progress of their work and the various options available for repairs. Lizzett kept me informed as to the time I could expect them to arrive, thus not requiring me to wait around all afternoon.
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They always do a great job!
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Crew was very professional and did a terrific job. Responded to my request for service quickly. Cleaned up my yard when done and I was very satisfied with their work.
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Fantastic customer service and same day repairs.
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Some of our irrigation heads were damaged apparently from a recent retaining wall extension. We noticed the grass and 2 of our crepe myrtles were wilting from not getting the proper watering on the zone where the retaining wall was put in. I called the American Irrigation office and Tracy did a great job of moving things around on Brandon's schedule to have him come out ASAP and address this problem.Brandon P. and helper Elias Velasquez arrived as scheduled and fixed the broken heads in record time and also relocated 2 heads for better coverage. Right after they left the A.I. office followed up with a courtesy phone call to ensure everything went well. Kudos to Brandon, Elias, Tracy, for yet another job well done!!
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They were very nice and efficient, also explained everything very clearly. Would recommend.
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These guys were very thorough and seemed to be very knowledgeable in their field!
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Service personnel were well trained, knowledgeable, and extremely experienced.
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Santos and Juan did a fantastic job. They were friendly, professional and answered all my questions. I would like Santos and Juan to return for my next Irrigation checkup. Justin and Ashly, you have a great crew.
Eddie S.
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American Irrigation Repair did a thorough job inspecting my irrigation system. They found areas needing attention and provided me an estimate for repairs.
John C.
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My sprinkler system wasn’t working at all and I was referred to American Irrigation Repair. I gave them a call, and they were able to come out the next day and did a full tuneup and inspection of my system and found that a main valve was not working. They were able to replace it at that time and had me back up and running in no time.Agustin, Veronica, and Oscar were all a pleasure to work with; and being a first-time customer the transaction and scheduling they made very simple. I would recommend their five star service to anyone! Thank you all!
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Thanks for all.your help and the great info.
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always prompt, professional, personable and polite. no efforts to upsell with clear explanation of pros/cons of recommended services.
Nancy R.
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Juan (1) explained to me what he was here for and when he was through checking all the sprinklers, he would return with a list of what needed to be fixed and a quote. He walked me around the house, pointing out what and where the problems were. I didn't know there was so much broken. He answered all my questions. Juan(2) a well as 1 got right after it finished quicker then i anticipated. I plan to let my friends know about you. Oh yes, the young lady on the phone was kind and understood my questions and was patient.
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Excellent experience with American Irrigation Repair through Ryan and his crew. Thank you so much.Larry and Susan Brundidge
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I can’t say enough about the quality of work I received. They were able to get my system back to its original state. Very reasonable as well. I’ll always be using them. Earl
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