took the boat out and started to unwinterize it and get it ready to go to the lake. well after putting all the plugs in and hooking the hoses back up I started the motor looked at the exhaust and no water coming out waited for another min and still nothing. so I think I have a bad impeller. So I took the water pump off to inspect the impeller and it doesn't look that bad, but since it is already have it apart I will put a new one in but my question is will one go bad during the winter months? and can you tell if one is bad by just looking at? like I said just looking at it it looked ok. Bummer guess I will have to wait tell next weekend to put it on the lake