A: The grinder pump will be owned by the drainage district, as is the pressure pipe on private property. The drainage district maintains the grinder pumps.
A motor which can be operated either on DC (direct current) or on single phase AC (alternating current) is called a universal motor. On both AC and DC, it gives approximately the same speed and output. Universal motors often run at dangerously high speed when operated at no load. This means that motor speed will be low at full load, but the speed of the motor will start increasing as the load on the motor decreases.
An electric motor is a device that turns electrical energy into motion, usually rotation. It changes electrical energy into mechanical or kinetic (movement) energy. This works using electromagnetism. A loop of wire containing a current is passed through an electromagnet's magnetic field.