You Are Here: Home > Landscape Irrigation > Design & Technical Resources > Calculators > 5 Easy Steps to Calculate Cost Savings - 1800-PRS Spray Heads

# 5 Easy Steps to Calculate Cost Savings

## Estimated Cost Savings Using Rain Bird 1800-PRS Spray Heads

EXAMPLE

 Calculate your estimated cost savings: Step 1: Enter the pressure (psi) at the nozzle: (Either enter the average dynamic pressure for the spray heads on one zone or enter the average dynamic pressure for all the spray heads on the entire system. If the dynamic pressure is not available, enter the system's static pressure. The static pressure will overstate the water savings, but it will still provide an estimate of the potential cost savings.) Step 2: Enter the GPM @30 psi: (If you entered the pressure for one zone above, enter the GPM for that zone. If you entered the pressure for the entire system above, enter the GPM for the entire system.) Step 3: Enter the Watering Schedule (All three required): Average Watering Time Per Day (min): Average Number of Watering Days per Week: Average Watering Weeks per Year: Step 4: Enter the Unit Water Cost (Select one or the other): Unit Water Cost (\$ per 1000 gallons): \$ Unit Water Cost (\$ per HCF or CCF): \$ Step 5: Enter Number of Sprinklers in the zone or System: Enter Difference in Price Between Standard spray head and 1800-PRS: \$ per unit

 The estimated water savings is: GPM The estimated yearly water savings is: gallons The estimated yearly cost of water savings is*: \$ The estimated cost of upgrading to 1800 PRS is: \$ Estimated Payback Time: years months

* (Due to varying conditions, your actual cost savings may be different. This formula is designed solely as a basis for estimating potential savings.)