Interlock shutdown due to rising pressure in the feed pipe of the ion-exchange membrane cell caused by blockage

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In the chlorine production cells, a blockage in the feed pipe of one cell caused the pressure in that cell to rise, triggering an automatic shutdown. Polarization current was immediately applied to start the process of purging the cell. It was then observed that the blocked cell was not overflowing; fearing that the polarization current might damage the ion exchange membrane and lead to an accident, the polarization current was turned off until the purification process was complete. Over a period of nearly three hours, the high temperature in the cell was reduced to 40 degrees as a result of this purification process. Is this operation correct? How much impact does it have on the battery cell? Is there a better way? Also, I would like to ask the experts: how is grounding handled for the anode fresh water pipe and the sacrificial anode? How should grounding be handled at the cathodic alkaline tube and the sacrificial cathode? Is it grounding or something else? Thank you to all the experts for their answers!