Installation Cost Comparisons - Hunter I-60 Series Product Information

INSTALLATION COST
COMPARISONS
HOW THE I-60 STACKS UP
AGAINST OTHER ROTORS
To demonstrate the cost savings that the
I-60 rotor can provide, we offer two
different examples where low water
pressure plays a key role in the decision
making process. In the first example, an
existing community park has seen its
water pressure steadily drop over the years
as surrounding development has increased.
In the second example, a city is trying to
determine which size rotor makes the most
sense to install in a new park.
With Precision Distribution Control
profile is maintained, even at low pressures.
EXAMPLE 1
RETROFIT INSTALLATION:
Existing 2.5 Acre City Park
Five years after the original system
installation at the site, the zone pressure
drops to 40 psi dynamic, due to a
substantial increase in surrounding
housing density. The entire irrigation
system at the park is currently
under-performing due to the lower
operating pressure.
The city is considering one of the
following options as a solution:
1. Booster pump to increase pressure
at the park
2. Hunter I-60 Rotor as a replacement for
existing rotors
18
IRRIGATION SPECIFICATIONS:
(Cost comparison utilizes prices quoted to a specific city,
actual costs may vary by region.)
® , a superior watering
Conclusion:
In this example, the clear winner is the
system retrofitted with I-60 rotors. Not
only is the I-60 less expensive to install
and maintain the first year, but it does not
have any overhead costs attached to it in
subsequent years. To install the I-60 rotors
into the existing system, the initial costs
are approximately $2,638, after which
there are no more costs. The pump
installation option costs are approximately
$3,664 for the first year (separated as
$2,787 for initial installation and $877 for
yearly recurring costs). In the first year
alone, the pump option will cost $1,026
more than just installing the I-60 rotors.
Also, the yearly costs of a booster pump in
the system after the first year will be
approximately $877.
Original system operating zone pressure
New system operating zone pressure
Original rotor spacing
Original nozzle size
Total rotors in park
100 gpm zones
Option 1: Booster Pump
ESTIMATED COST OF PUMP INSTALLATION
YEARLY ELECTRICAL ENERGY COST
YEARLY PUMP MAINTENANCE LABOR OVERHEAD COST
Initial Installation Cost
and 1st Year Operating Costs
Option
2: I-60 Rotors
ESTIMATED COST OF ROTOR INSTALLATION
YEARLY ELECTRICAL ENERGY COST
YEARLY ROTOR MAINTENANCE LABOR OVERHEAD COST
Initial Installation Cost
and 1st Year Operating Costs
70 psi
40 psi
62'
20 gpm
30
6
$ 2,787
$ 337
$ 540
$ 3,664
$2,638
$ 0
$ 0
$2,638