4
1” to ½” NPT “T” Fitting
1” threaded
1” Coupling to join
1” Bend
mounting Injection Point
Coupling to connect irrigation pipe
pipe to Flow Sensor
Irrigation Pipe Sizes
Many irrigation systems use a 1” size main line. The Flow Sensor supplied is 1” for this reason. If your main
line is ¾” / 1” / 1¼” you can use the supplied Flow Sensor. For ¾” and 1 ¼” just use a reducer to plumb in the
Flow Sensor. These are included with the purchase of the machine.
Installing the Parts
The Injection Point and Flow Sensor can be plumbed in a number of ways as long as they are fitted in the main
irrigation line, above ground level and downstream of the Backflow Valve. The Injection Point should be
downstream of the Flow Sensor so that fertilizer doesn’t pass through the Flow Sensor.
The Flow Sensor needs to be installed
correctly. Note the arrow which indicates the
direction of flow. The flow is from the
backflow valve, then through the Flow Sensor,
then through the Injection Point.
The Flow Sensor needs to be installed with
the wires facing down. This is so water cannot
enter the switch.
UP
Wires exit on
bottom Side
