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Thread: Pump noise when air temp drops

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    Pump noise when air temp drops

    Hey everybody I have a tristar pump that mAkes a high pitch noise but only when the temp drops into 30's. Replaced motor this past June under warranty because the bearings went bad. This noise is completely different. Any thoughts?

    18 by 36 mountain lake, swg aqua plus, cartgidge filter, two speed tristar 1hp, 1hp super pump for deck jet n waterfall, espio alarm, aquabot jr, Definitive Tech Aw6500 speakers, Onkyo receiver

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    Mod Squad zea3's Avatar
    Join Date
    Jul 2009
    Houston, Texas

    Re: Pump noise when air temp drops

    My first pump did that for about 6 years. Never figured out why. Mine finally died when the bottom casing rusted out. Have you contacted the manufacturer about the noise?
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    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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