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Thread: Main pump sprung a leak

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    Main pump sprung a leak

    First, the advice on this site has saved me hundreds of dollars. Thank you to all you experts. I am not one of you, but you've gotten my chems in balance and even better, you get me to UNDERSTAND why things happen.

    Today, I realized my main pump Jandy 2 hp Stealth was squirting high pressure water out the side of the junction between the motor and the pump body. The exploded view diagram makes it look like it's the gasket between the plate on which the motor is mounted and the pump. Is it really that simple? Or are there seals or o-rings internally that also need replacing?

    I'm trying to decide whether to call my pool guy or do it myself. I'm very handy (replaced salt system and did salt cell plumbing, replaced o-rings, replaced DE filters, etc.), and if it's just replacing a gasket, I'm probably fine. But if it's more internal stuff that should be replaced, I may opt to hire someone. Thoughts?
    30,000 gal salt with spa; built 2006; Jandy 2 hp single speed Stealth; 48 sf Pentair DE filter; Pentair 4 wheel cleaner; Jandy 1400 SWG and 1400PLC salt cell. New filter grids, cleaner pump.

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    Smykowski's Avatar
    Join Date
    Sep 2011
    Gurnee, IL (North Suburban Chi-town)

    Re: Main pump sprung a leak

    If water is squirting out, it's probably an o-ring. Can you post a picture? Search the pumping station forum....someone had a very similar problem back in the beginning of the summer. Given what you've described about your abilities, it sounds like you can handle it.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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