Water Conservation. It's For Life.

Installing A New Sprinkler System

Getting Started: What You Need to Know About Your Home

For an irrigation system to be successful, it must include proper design, correct installation, the right component selection, the proper layout, and equally important, appropriate maintenance.

Learn the terms:

You’ll also need to gather some information about your water system:

What is your water pressure?

Water pressure is measured in pounds per square inch or psi. An average water pressure is around 30-50 psi but pressure can vary widely. It is important to know your home’s specific pressure before designing an irrigation plan. Too much or too little pressure can prevent your system from working properly. Most sprinkler systems work at an optimal pressure of 30-50 psi, and most drip systems work best in the range of 20-40 psi.

How to measure your water pressure

Purchase a pressure gauge and screw it onto an unregulated outdoor faucet. Make sure no water is running anywhere inside or outside your house. Turn on the faucet with the gauge attached. The gauge will show your pressure as measured in psi.

How to determine the size of your water meter

Often, the meter size is printed on the outside of the meter. If you don’t see it, give your water provider a call and ask for that information.

How to measure your service line

Locate the pipe that runs from the water meter to your home. Measure it by wrapping a piece of string around the pipe and then measure string. Find your service line size on the table below.

String Length 2 ¾” 3 ¼” 3 1/2”   4” 4 1/8” 5”
Type of pipe Copper ¾” 1” 1 ¼”
Galvanized ¾” 1” 1 ¼”
PVC (sch. 40) ¾” 1” ¼”

Once you have this information, you can use a variety of online tools and support services to help you design your new drip irrigation system. Here are links to several of the major irrigation manufacturer’s websites that provide this service.

Helpful Videos