Frequency conversion water supply in residential quarters consumes a lot of electricity.

Under normal circumstances, there are pressure sensing devices (pressure gauges or transmitters) at the outlet end of the water pump and behind the non-return valve, which can feed back the change of pipeline pressure to the frequency converter at any time, and the frequency converter will adjust the speed of the water pump according to the change of pipeline pressure, so that it will turn fast when using water, and earn slowly when there is little water. You can stop the pump automatically. You'd better use the water supply controller. In this case, all the functions you mentioned can be easily realized. I can send you a manual for your reference right away. My mailbox, 5 12720902@qq.com.