The Jabsco Motor/pump is about 2.5-3 years old, if that. Replaced just before I bought the tub 2 years ago. No visible corrosion, wiring and power good. Probably an impeller problem, lack of use: Guesstimating 3 minutes each pump, 10 pumps per year. Rotten impeller and internal corrosion, maybe. No point in buying the cheapest macerator pump on the market, same problem over and over again. Been replacing and even overhauling these $110 Jabsco pumps on client’s boats, not my fondest memories. Would rather pay twice the price on my own boat for something that will last longer and work better. Hopefully this Raritan will do just that.