1. Water flow automatic booster pump

Working principle: Polish the water fluorida (water flow switch) in the pump through its own flow (4L per minute), transmit the signal to the controller in the pump, control the controller to control the water pump motor, press the pump work to press pressure Water supply.

Advantages: Structures, simple principles, cheap prices

Disadvantages: The water flow switch is easy to block

2. Pressive automatic pressure -booster pump

Working principle: The pump is controlled by the pressure sensor in the pump (with upper limit and lower limit) sensor in the water pipe. When the pressure in the water pump is up to the upper limit of the pump pressure sensor, the water pump is stopped, and the water pump is lower than the lower limit of the lower limit of the water pump pressure sensor. start up.

Advantages: can draw groundwater, cheap.

Disadvantages: The contacts in the pressure sensor are easy to sintering (the pump cannot work) for a long time, and the impeller is easy to heat and burn the motor after the pump body stuck (water rust) is killed. Stop between the upper and forth between the upper limit and the lower limit (the pump is constantly start and stop).