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RIDGID SP500 Sump Pump

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  • RIDGID SP500 Sump Pump

    I removed the 3 rods holding my sump pump together to clean and paint the cast iron pump base and when I lifted the pump by the handle, it fell apart dumping all the oil. I now have to replace the oil. Does anyone know what type of oil that was?

  • #2
    Re: RIDGID SP500 Sump Pump

    last time i rebuilt a pump. i went to the motor shop and they sold me a dielectric oil.

    you really need to know how much to install as it's not the entire cavity.

    probably worth it to take it to a motor shop for their expertise.

    Last edited by PLUMBER RICK; 12-03-2007, 11:34 PM.
    phoebe it is


    • #3
      Re: RIDGID SP500 Sump Pump

      You need a high temperature dielectric oil. This is used for cooling large transformers besides motors. Rick has the idea of trying places that rebuild electric motors.
      Last edited by Woussko; 12-05-2007, 08:48 AM.


      • #4
        Re: RIDGID SP500 Sump Pump

        which type sump pump do you have?
        Attached Files


        • #5
          Re: RIDGID SP500 Sump Pump

          This will not help you since this is years in the future...
          The part number is ridgid 90297, dielectric oil (1 pt) costs 10.85 at