Jabsco also advertises a 20 minute run dry however after 5 years or so I notice not much water was being pumped. Even the sound of the pump changed somewhat.

The nylon impellers (all pumps regardless of brand) were starting to wear. I even put a shot of silicone or oil in every so often to help prevent impeller wear. My amphi doesn’t take much water in but the pump impeller was worn enough that it would only pull the bilge water up to the pump, but not pump it out. Installed a new nylon impeller and it is like new. Check your impellers for wear every few years. It only takes a few minutes. The nylon will eventually wear down.


        
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