I recently acquired a 1987 Catalina 27. It is a project. Pulled up the carpet and wood plank that covers the area where the cabin bilge pump is located. A friend of mine has a similar boat with a fairly new rule industries bilge pump and switch. I anticipated finding a similar set up in this one. However, I did not. Attached is a picture of what I believe to be the cabin bilge pump. There are no electrical wires connected to it although there is a slight vibration to it. Does anyone recognize this? It may be original equipment. Anyone know how difficult it would be to replace with a new pump and switch? as you can see, the compartment has dirt and grime in it. I would like to get this cleaned up and new pump and switch installed just to be safe. Any comments would be greatly appreciated. Thanks.