When the water level drops, the main valve is composed of a floating ball switch control to open the water inlet to the water tank, automatic replenishment.
当水位下降后，主阀由浮球开关控制打开进水口向水池汪水，实现自动补水。
The pressure tank is provided with a pressure gauge, a pressure switch, a liquid level sensor and an electric heater.
压力罐装有压力表、压力开关、液位传感器和电加热器。
应用推荐