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1/3 hp sump pump problems

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  • 1/3 hp sump pump problems

    I am replacing my old pump with a Rigid 1/3 hp pump. I installed a new check valve (yes the arrows are pointing up) but when I plug the pump in the motor goes on but no water discharges. I shut the pump off disconnect the pipes and there is no water north of the check value but there is a lot of air pressure in the line. What am I doing wrong?

  • #2
    Re: 1/3 hp sump pump problems

    Sounds like you have a plugged line.

    Sump pumps can't make more than about 15 lbs of pressure, so if there is an obstruction, it's not likely going to blow it down stream.
    Frequently asked questions about pumps and tanks.