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5 Easy Steps to Calculate Water Savings

Estimated Water Savings Using Rain Bird 5000/5000 Plus PRS Series Rotors

EXAMPLE:

 

Calculate your estimated cost savings:

 

Step 1:

Enter the pressure (psi) at the nozzle (between 45 psi and 75 psi):
(Either enter the average dynamic pressure for the rotor on one zone or enter the average dynamic pressure for all the rotors 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 water savings.)

Step 2:

Enter the GPM @ 45 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 Average Watering Time per Day (min.):
Step 4: Enter Average Number of Watering Days per Week:
Step 5: Enter Average Watering Weeks per Year:

The initial system waste is: GPM
The yearly water savings is*: gallons

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

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