Just bought a used 1720 not too long ago. There's a wire sticking out on the back near the live well (Pictured) that I think is used to plug in a bubbler for the live well but I'm not sure. Can someone please fill me in. If it is for a bubbler, what kind would I need to get that would hook to it? Can you not just run the aerator pump continuously and let the extra water go out the overflow pipe? Also any suggestions on boat covers?