Impeller Sensor For Fluid Pump

An sensor for a liquid pump, the sensor comprising:

• positive and negative electric power input leads coupled to an electric power source;
• positive and negative power output leads electrically coupled to and configured to providing motive power to the liquid pump;
• an amperage sensor coupled to the power input leads, the amperage sensor configured to sense the amperage draw of the liquid pump while the liquid pump is operating;
• a timer configured to provide motive power to the liquid pump through the power output leads at a predetermined first time interval;
• circuitry configured to continue motive power to the liquid pump through the power output leads when the amperage draw of the liquid pump sensed by the amperage sensor is above a first threshold;
• and
• the circuitry configured to discontinue motive power to the liquid pump through the power output leads when the amperage draw of the liquid pump sensed by the amperage sensor falls below a second threshold.