The FCT tee fitting comes with a plug that allows for installation of the FCT into the irrigation system prior to installing the Sensor. This allows the FCT tee to be installed separately from the sensor and prevents damage to the sensor during installation of the body.
To install the sensor into the body:
NOTE: Save this blank plug! You can use it to temporarily to replace the flow sensor during winterization blow out, to prevent damage to the sensor from high velocity air.
NOTE: do not attempt to remove the sensor plug or sensor while the system is under pressure.
Never glue the HFS sensor into the fitting! The threaded cap is designed to seal under pressure.