Xeriscape Landscaping with Style in the Arizona Desert

If you are using PVC pipe, make sure the pipe and fittings are clean. Then apply a light, even coat of primer and glue to both the pipe and the fitting. After connecting the pipe and fitting, wipe off any excess glue. Allow the glue to set for twenty-four hours before pressure testing for leaks.
Poly tubing has a tendency to roll back on itself. If you are using poly tubing rather than pipe, allow the tubing to warm in the sun. It will become softer and easier to work with. To hold the tubing in place, put some soil back in the trench (spot backfilling) about every five feet.
If a common trench is used, consider painting each pipe or poly line a different color to identify the type of plant or planting area each line waters. Colors should correspond with those used on your irrigation plan.
Leave fittings exposed so they can be pressure tested for leaks.
Flush the lines before installing emitters. Open one flush cap at a time and let each valve run for about two minutes.
If you decide not to use self-piercing emitters, you will need to punch holes in the poly tubing to add adapters that connect to each length of micro tubing. Ask your salesperson for assistance in selecting an emitter punch that is the proper size for your project. Don't cut corners by using a nail or other sharp object that can make the hole too large or pierce the bottom side of the tubing.
Do not exceed 200 feet of poly tubing from the valve to the flush cap.
Do not exceed a total flow of 200 gallons per hour (gph) per valve.
Micro tubing that exceeds six feet in length is NOT recommended.