Gallons per minute (GPM)

Gallons Per Minute (GPM)

Gallons per minute (GPM) is a measure of the rate of which water flows through a sprinkler system, representing the total volume of water flowing in one minute. It directly affects a system’s total water pressure (which should not exceed 12 GPM), sprinkler head selection, system design, and total water usage for efficient use and moderate water bills.