Our residential sprinkler systems are installed using a pipe-pulling machine called VIBRATORY PLOW.
This machine cuts the ground while pulling the pipe in, ensuring the least amount of disturbance to your lawn.
This is by far the preferred method for residential installations.
The other method for installing a sprinkler system is the TRENCHING method.
Trenching is normally done in large scale jobs, such as sports fields, parks, or commercial projects,
where the diameter of the pipes being installed is usually 2" or larger..
If you're thinking of getting an irrigation system for your home, avoid trenching.
Unless of course you do like having your lawn look like a battlefield by the end of the installation !