15kw Westerbeke I am positive it hasn't sucked up anything as nothing is in the strainer and its putting out alot of water. This particular problem happened a couple of times before. For whatever reason the gen has been running for 1 hr with no shutdown. I didn't detect any of the wire connections being loose but maybe that was the problem or slight corrosion although didn't see any of that. Will keep running it and see if it reappears. Have never located the sensor for the elbow?