I removed both rear factory hard tanks. The marina actually removed them a couple summers ago and I'm only able to find one of the sensor wires/connectors. On the starboard side I found the connector and taped the sensor from the hard tank so it is half full and connected it. I plumbed in a sumo 750 sac and use the factory pump - has always worked great. I cannot find the sensor on the port side anywhere so I cannot get the factory pump to fill/drain. I've always just filled/drained with pump over side of boat. Anyone have any advice on how I can can overide sensor so my factory port side pump works? I am real tired of filling/draining over side of boat. Thanks!