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| How it Works |
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The
FertiGator is designed to be simple, efficient and easy to use
for maximum versatility. It is composed of two main parts - an
injector and a controller. Program the controller and it tells
the injector when to put fertiliser into the line and out onto
your property.
|
Overview |
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The controller reads the sprinkler system timer
to determine what zone is on. |
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The controller then tells the injector how many
times to pulse in order to deliver the right amount of
product to that zone. |
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The injector pulses the proper number of times,
drawing the fertiliser through the ¼-inch polyethylene
tubing from wherever the fertiliser is located (the
garage, shed, basement or nearby valve box) and
injecting it in one milliliter pulses into the sprinkler
system line |
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The
Controller
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The brain
of the FertiGator is the controller. It is wired into the
sprinkler system controller and is usually mounted beside it.
When a sprinkler zone activates, the FertiGator reads this and
causes the injector to pulse which sends fertiliser out into
that zone.
Each irrigation zone on the controller is
programmed to deliver precisely the right amount of fertiliser
for that zone. Injection rates may vary from as high as 19
pulses every two minutes to one pulse every eight minutes. A
zone can also be programmed at 0 pulses if
necessary.
All controllers have non-volatile memory,
which means that they can be turned off without losing the
program that was entered, even for an entire
winter. |
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The
Injector
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1. Fertiliser Tube
2. Top Fertiliser
Chamber
3. Middle
Spring Chamber
4.
Bottom Water Chamber |
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Each
injector barrel has 3 sections: A top "fertiliser chamber", a
middle airtight "spring chamber", and the lower "water
pressure chamber." The injector has two high-quality,
specially designed 3-way solenoids. These solenoids will not
allow the fertiliser from the fertiliser tube to back-siphon
into the water system. The top one handles the fertiliser and
the bottom one controls the water pressure used to operate the
pump.
When the controller sends a signal to the
injector, the two solenoids open. Water rushes in through the
bottom solenoid into the bottom chamber forcing the piston up,
coiling the spring, and injecting the fertiliser into the
water running through the tubes across the top of the
injector. After the injection is completed, the solenoids
close relieving the water pressure in the bottom
chamber.
The spring pushes the piston down, forcing
water out the port on the bottom solenoid and sucking a new
charge of fertiliser into the top chamber. Since more water is
discharged than fertiliser is injected, there is no increase
in mainline pressure. |
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The
Fertiliser
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| The
fertiliser is drawn from the container it is purchased in
through a ¼" OD polyethylene tubing to the injector and out
into the sprinkler system. The fertiliser container is located
anywhere the property owner desires - in a garage or shed.
Occasionally, the wires for the injector and the tubing for
the fertiliser are pulled together so that the fertiliser ends
up near the
controller. | |
