Dig for Your Sprinkler System The trenches will be relatively shallow, usually 6 to 12 inches deep, depending on your area's freeze cycles and frost severity. The trench must also be deep enough to allow the sprinklers to retract underground to prevent breakage from lawn machines.
My recommendation is to bury sprinkler lines 8-12 inches. I usually try to keep a standard depth of 10" because it provides more safety if I need to do some type of ground work so I don't have to worry about hitting lines.
Sprinkler lines should be buried below the grass roots, and deep enough the sprinkler heads sit flush with the soil surface or slightly above grade. The depth varies depending on factors but typically ranges from eight to 12 inches.
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.
A good rule to follow when considering the depth of a sprinkler system is, measure the body of your most commonly used sprinkler heads, then add 2 inches. For example, if you are using Rain Bird 1804 pop-up sprinkler heads, the body is 6”, so I would recommend that the sprinkler piping be 8 inches deep in this case.
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. On narrow strips of grass use strip pattern spray heads and space them evenly apart.
Check the Blueprint. Most irrigation systems have a map or layout showing the sprinkler heads' location. This blueprint is an invaluable tool for pinpointing the exact locations of the sprinkler heads, helping you avoid unnecessary digging.
You can also use underground wire cable locator NF-826 to find the underground sprinkler wires without digging and it's the easiest way. Let's dig a little deeper. Table of Contents: Part 1: What Is A Sprinkler Valve Box and A Sprinkler Valve.
Use Metal Detector
Many professionals use metal detectors to find their missing sprinkler heads. A metal detector is a great sprinkler head detector. Sprinkler heads usually have metal parts at the top of the head or inside gears.
Today, the best tool for the job is ground penetrating radar (GPR) as it accurately maps metal and PVC pipes. Traditional pipe locators use electricity and magnets to locate underground pipes.
Using a Metal Detector
Most irrigation pipes these days are made from PVC, but if whoever installed the lines thought to install a metal tracer wire alongside or even inside the line, a metal detector would be able to locate and trace the wire.
20 Feet HDPE Sprinkler Pipe, 2inch at ₹ 320/piece in Bemetra | ID: 24286852062.
For a rough rule of thumb, 18-gauge is good for 750 feet, if you are operating one valve at a time.
Dig for Your Sprinkler System
The trenches will be relatively shallow, usually 6 to 12 inches deep, depending on your area's freeze cycles and frost severity. The trench must also be deep enough to allow the sprinklers to retract underground to prevent breakage from lawn machines.
Dig trenches following the string. Mark the sprinkler locations with flags or the stakes. Typical trench depths range from 6 to 12 inches.
The number of sprinkler heads per zone depends on the water pressure and flow rate of a system's water source. A traditional system may have a dozen rotors and 8 to 10 spray heads. An Irrigreen system only needs one sprinkler head per zone.
A big mistake that people make is putting the pipe trenches either too deep or too shallow. Pipe trenches for an in-ground sprinkler system need to be at least 7 inches underground and no more than 10 inches.
Sprinkler Heads In Most Or All Zones Won't Pop Up.
Check all of the valves to make sure they are fully open, especially the main system shut-off valve and the valves on your backflow preventer. A partially closed valve will reduce the water to the sprinklers, causing them to not fully pop up.
If you do not reroute your irrigation system before laying down concrete, you can accidentally block your drip lines. Any blockage to your drip lines can cause the system to malfunction.
Use a Metal Detector
You can do so by scanning it over a sprinkler head that's functional. Also, to get an accurate reading, make sure to adjust the sensitivity settings. Once your metal detector is able to identify a functioning sprinkler head, you can then start scanning your lawn for those that are buried or stuck.
Other secondary private utility lines can include site lighting, storm sewer lines, irrigation lines, underground storage tanks (USTs) and vent pipes. The 811 One Call system will generally not mark secondary utilities and will not provide the depths of any utilities as part of their locate.
Yes, they can. Aerators are powerful machines that punch holes into the ground, and if they hit a sprinkler head, they can cause significant damage.
Water that isn't sprayed from the sprinklers doesn't specifically “rest” in the sprinkler lines, but it can stay there until it's either sprayed out in normal usage or blown out with an air compressor prior to winterization.