SOLO
Partially open a valve and turn on the power to the controller. When the unit is powered on, the controller flashes four 8’s (8888), and then it will flashes SOLO three times. To purge the system of air, run the pump and controller with the furthest and highest faucets or valves in the system open. When the flow is constant, close the faucets or valves, let the system pressure reach the setpoint, and shut down.