The electrode ejection control system is electrical and consists of three (3) stainless steel electrodes of unequal length mounted on the cover plate by means of properly insulated NEMA IV electrode holder. The cycle begins as sewage enters the pot by gravity flow. As liquid level reaches the second shortest electrode, it completes a circuit which energizes a relay and sends a signal to the electrode control panel requesting flush air. The discharge action continues with air being applied to the surface of the liquid until the liquid level descends in the sewage receiver past the tip of the longest electrode and the system is de-energized at which point the circuit is broken and the flow of air stopped.

The electrode holder is designed to also serve as the inlet air connection such that air entering the ejector pot will blow past the electrodes tending to remove any stringy material which might otherwise adhere to them. Each of the electrodes will be insulated except for its contact point by an impervious sheath of corrosion-resistant Tygon and operate on 120 Volt, 1 Phase service. An electrode control panel will be required. Lastly, the ejection control will include a third stainless steel electrode mounted on the cover plate, which could be utilized to signal an alarm, telephone dialer, on-off sensor to detect pot cycle(s), cycle time at remote station or SCADA system if desired by our the customer.