Does the water pump need any regular maintenance?[/QUOTE]
I think you answered the question right there!
Yes they need regular maintenance annual or bi annual impeller replacement or if you buy the genuine service kit it comes with everything to service the engine & water pump. As you change the anodes you get a good idea on the level of salt & corrosion build up. But if your mainly freshwater then that shouldnt be the issue & a simple service will remedy your issue
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