Question about Pentair Pinnacle High Performance 1 HP Inground Pool Pump PFIIPI1

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Hi - I have a 1 1/2 HP Pentair Pinnacle pump that has been making a bit of a grinding noise. It did so last season as well - my husband took it apart and we found that some debris had made it through the pump basket (I've replaced this now since it had a nice size crack in it) and was blocking the impeller. We took it apart again yesterday - no blockage, but it looks like the seal (I think it is the shaft seal) looks a little worn. Could that be the issue? When my filter turns off - my pump basket empties as well - so I am getting air somewhere. thank you~

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  • melanie_k_st May 26, 2011

    Thanks so much -- I am going to buy a full repair set of seals for the pump and take care of everything all at once. The pump is only 6 years old, so I am hoping this takes care of it and I'm not looking at a new purchase.
    Thanks again - have a great day~

  • melanie_k_st May 26, 2011

    Yes - I was looking for a 2nd opinion on what my initial thoughts were. Having confirmation come from a Guru -- made my decision a final one.
    Thank you!

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Yes it could well be the seal that is making the noise. This could also explain why you are getting air into your system. I would also check all fitting and pump casing for any leaks or hairline cracks.Good luck. Thank you.

Posted on May 26, 2011

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