I believe PVC pipes are used in place of Drip lines and the process would be similar to Drip Irrigation lines. I have seen somewhere on net that we need to use threaded pin connectors for connecting drip lines.
By installing a PVC drip irrigation system, you can ensure that your trees receive the proper amount of water and nutrients, promoting healthy growth and reducing the amount of water wasted.
Unfortunately, the link is no longer valid. Do you have an updated link to share? I know of many people who would love more tips on drip irragation for their land, including their trees.