Background:
Vivaldi II purchased and installed April 2007.
Sunday March 28, 2010 the pump started to sound strained and hesitant.
Monday March 29
I removed the pump to check for leaks and damage as described by others.
No leak, no damage; perfectly dry and clean.
The motor rotates freely but the pump is hard to turn.
Re-assembled.
Tuesday March 30
pump is clearly straining and does not sound correct.
How freely should the pump shaft rotate?
I suspect that my pump bearing/seal is failing and that I probably need to replace the pump?
Thanks in advance for you advice and input,
Mark
Is my pump dead?
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JohnB
Re: Is my pump dead?
Sounds like you've found the problem but I'd try an overnight soak in either white vinegar or hot citric acid solution before I gave up on it. Submerge the pump & turn it over by hand to force out any air bubbles. If it's still just as bad in the morning order a replacement.