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Thread: Pentair Superflo Motor Replacement

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    Join Date
    Apr 2010
    Indianapolis, IN

    Pentair Superflo Motor Replacement

    Good afternoon. I had to replace the motor on my 1.5 HP Pentair Superflo Pump last summer. I replaced it with a AO Smith Centurian B2854. At that time, I replaced the pump seal and all of the o-rings and seals. It had a small leak all summer and I took it apart and reinstalled it at least 3 times. I am doing it again. I have bought a new set of pumps seals, US SEAL PS-200. I believe it leaks around the shaft seal not the pump casing. Any hints or suggestions would be greatly appreciated.
    29k, IG, gunite & fiberglass, Sta-Rite Cartridge #58M150 450 sq/ft 125GPM, Pentair Superflo !.5 HP, 2 X 1.5" returns, 1 skimmer, 1 drain, SWG, Hydraulic vinyl auto cover, Installed 7/8/92

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    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: Pentair Superflo Motor Replacement

    Continuous failure of seals is either an installation problem (wrong direction) or the motor shaft is bent. Try running the motor while the wet end is removed and watch the impeller for any wobble.
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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