Automatic unit that controls the operation of surface and submersible pumps with power up to 1300W. Replaces the pressure switch and pressure tank. Disconnecting the tap gives the signal to the PC-15 unit, which starts the pump. When the tap is closed, the PC-15 will stop the pump. The automatic unit can operate with single-phase pumps, whose energy consumption during operation does not exceed 10A. The device has dry-running protection. When there is no water in the source, the device will stop the pump. The device is equipped with a 60cm long cable for connection to the pump and a 1m long power cable with a plug. The PC-15 is equipped with 1" diameter threaded pipes.