The Submersible pump with the float switch is designed to pump water until the water level is low and then it switches off. The tank is then refilled and the cycle continues.
The idea of including the 'pressure control switch' is to turn the pump on and off when the taps are turned on and off, just as a normal household pressure pump would.
Turning taps on and off:
The pressure control switch is used to turn the pump on and off automatically when the tap is turned on and off.
Tank water level:
The float switch monitors the water level in the tank.
When the tank is full, the float on the switch is standing vertically The ball in the float switch rolls towards the other end releasing the button on the micro switch and so the pump starts... if a tap is turned on at the time (when the 'Pressure Control Switch is included in the line). At this angle the switch will allow the pump to pump water.
When the water reaches a certain low level, the float switch valve will lay down horizontally on top of the water. When it is at the horizontal angle the ball presses down on the arm, which in turn via the lever presses the button on the micro switch, breaking a circuit and so the pump stops. This switches the pump off until the tank is refilled and the float switch is standing vertically again. Once the water level is restored, the float switch then resets itself and the pump will run once more.
By adjusting the amount of 'slack cable' to the float switch, determines when it will operate. In order for the float switch to work, it must be able to tilt up and down on the water surface with no obstructions. |