Features: When the water outlet is closed, it will automatically power off, the motor stops. After the water outlet is opened, it will automatically power on, the motor runs. Water pump with a pressure switch will be automatically cut off when the pressure of water outlet is big enough. Diaphragm pump combines the advantages of self-priming pump and chemical pump. The diaphragm is synthesized by a variety of imported materials, which is oil resistant, heat resistant, acid resistant, alkali resistant, corrosion resistant and chemical resistant. Rubber bracket can absorb vibration from the working pump. High pressure, generally can reach 5-7kg. Low power consumption: only 1.4-2.4A. Long servie life for over 5 years in normal use.