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Thread: Leaking spa circulation pump

  1. Back To Top    #1

    Join Date
    Oct 2015
    Location
    Pueblo, Colorado
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    Leaking spa circulation pump

    I pulled out my circulation pump to clear a leaf blockage in the wet end.
    After replacing I have good flow, but a leak from the impeller housing. I put
    an o-ring and a translucent shaped gasket on the wet end head, as I hope
    it was supposed to go. I will take this off this weekend and reset things.
    I may have just rushed the tightening of the head assembly and gaskets.

    Some advice perhaps.

    Would a bead of silicone be a good or bad idea?
    How could a replacement gasket be found or improvised?

    When I have it apart I will likely post pictures of the
    pieces to get advice on how to properly seat the impeller head.

    A Laing E10 Spa Circulating Pump 3/4" Barb is the current production
    replacement, but the pump and head seem to be working fine.
    Marquis Spa. 1998 Reward. 320 gallon. Filter turnover rate: 64 times daily.
    Just repaired and put into service after sitting idle for years.
    Researching TFP dichlor-then-bleach vs. Nature 2 mineral / MPS

  2. Back To Top    #2
    Mod Squad zea3's Avatar
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    Re: Leaking spa circulation pump

    You probably need to replace the shaft seal. Don't put any silicone on it. Anytime you take the pump apart you should replace the shaft seal.
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    Re: Leaking spa circulation pump

    Quote Originally Posted by zea3 View Post
    You probably need to replace the shaft seal. Don't put any silicone on it. Anytime you take the pump apart you should replace the shaft seal.
    I pulled the pump out again and with a better 3mm hex tool carefully seated the impeller housing.
    Back on the spa and it leaks just the same. There is an outer gasket and I guess a shaft seal.
    I have some pictures here

    Any thoughts and fixing the leak?

    The current production pump is about $150, and would require piping changes.

    Maybe you can point out the shaft seal to replace in one of the pictures.
    Where would I get replacements for the housing gasket and shaft seal?
    Last edited by cootcraig; 11-14-2015 at 04:47 PM. Reason: Add a question
    Marquis Spa. 1998 Reward. 320 gallon. Filter turnover rate: 64 times daily.
    Just repaired and put into service after sitting idle for years.
    Researching TFP dichlor-then-bleach vs. Nature 2 mineral / MPS

  4. Back To Top    #4

    Join Date
    Oct 2015
    Location
    Pueblo, Colorado
    Posts
    4

    Re: Leaking spa circulation pump

    Picture of gasket ring on circulation pump here.

    Page with pump pictures here

    Would it make sense to scrape off and replace the gasket on the pump body?

    Where could I get a replacement gasket?
    Marquis Spa. 1998 Reward. 320 gallon. Filter turnover rate: 64 times daily.
    Just repaired and put into service after sitting idle for years.
    Researching TFP dichlor-then-bleach vs. Nature 2 mineral / MPS

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