Follow our guide on measuring pressure and then select your pressure from the following page:
Pressure gauges can be picked up at most hardware stores.
Place your pressure gauge off the mainline where you will be connecting your piping. Make sure the connection is threaded securely to get an accurate reading.
Turn on the water, taking note of the pressure reading. If you are maintaining pressure within 40-80 PSI, you are good to move onto the next step.
If the pressure gauge is fluctuating, you have dynamic pressure. All irrigation requires constant pressure, you may have to consider a pressure regulating valve (PRV) or a constant pressure system.
Note: The Irrigreen XP Sprinkler Heads have a pressure sensor that can make up ~5-10 PSI of pressure fluctuation. Measurements must be taken even with XP, if you do not meet our requirements your system is likely to underperform.