Mine doesn't seem to be working. I just bought this boat and I can't figure out the bilge. It has a 3 position switch. IS there a float ?shoudn't i be able to hear the bilge pump with the key in positon one? the lights go on. Also the marina i brought it from said they replaced the horn because it was weak/old sounding but The horn button does not fire off the horn. Does the engine need to be on perhaps. I'm confused. I can't see the bilge because the gas tank is in the way. Thanks, Brett