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Thread: Is my pump dying?

  1. Back To Top    #1

    Join Date
    May 2008
    Location
    Central Texas
    Posts
    60

    Is my pump dying?

    My 3/4 HP GE Pump is making a strange noise. It's going gruuuuum-gruuuuuum-gruuuuuum-gruuuuuuum instead of it's pretty normal, quiet self. Also, the motor casing is very hot to the touch after only a few minutes of running. I just started noticing this yesterday. We've lived in this house for 2 years so I have no idea of the age of the pump, but I would guess it's 10+ years old?

    So do these symptoms sound like a dying pump? Should I take it in to get repaired or are we better off with a new, more efficient pump?

    Any other details to diagnosis this problem and possible solutions?

    The pump is located approx 30 feet from the 1 skimmer.

    Thanks!
    11,000gal, in-ground, concrete, sand filter, 3/4 HP pump, TF-100 Test Kit, Austin Texas

  2. Back To Top    #2
    whoozer's Avatar
    Join Date
    Apr 2008
    Location
    Acton Maine
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    633

    Re: Is my pump dying?

    You may need a new pump based on age....but make sure you don't have a clog somewhere in your lines first. Good luck.
    14x33 fiberglass freeform
    Variable speed Pentair intelliflo superpump
    420 Clean and Clear Plus cartridge filter.
    pool-school/pool_calculator , http://www.tftestkits.net/

  3. Back To Top    #3

    Join Date
    Apr 2008
    Location
    Central Texas
    Posts
    326

    Re: Is my pump dying?

    How is your filter pressure? If it's low, then it may just be that something is clogging the impeller. This causes water flow to drop way off. Opening up the pump housing is pretty simple on most pumps.

    Another cause could be that the bearings are failing. If you are a handy DIY type, the bearings are cheap and can be replaced fairly easily. I replaced the bearings in my pump for about $20, and also replaced the shaft seal at the same time for about $12.
    26,000 Gallon Gunnite IGP
    2 HP Challenger High Head Pump
    60sf Nautilus DE filter
    Polaris 280

  4. Back To Top    #4

    Join Date
    May 2008
    Location
    Central Texas
    Posts
    60

    Re: Is my pump dying?

    Pressure is normal at about 18psi. The housing is VERY hot though. How would I know if the bearing was faulty? And should I continue to run it at this point?
    11,000gal, in-ground, concrete, sand filter, 3/4 HP pump, TF-100 Test Kit, Austin Texas

  5. Back To Top    #5

    Join Date
    May 2008
    Location
    upstate, SC
    Posts
    29

    Re: Is my pump dying?

    Diagnosing a pump motor going bad can be tricky. To the check the bearings 1.if you pull the impeller housing off check to see if their is any movement in the shaft up,down left,right (some movement in/out is normal) if there is you got some bearings going bad. Another way is to use a stethoscope (a screwdriver works too ) and place in towards the front and rear of the motor and listen for a grinding metal on metal sound (be carefull). If its just kinda slugging you may just have some air in there or flow is partially restricted. It being hot can be normal unless its really hot with higher than rla amp draw. If goes out i would replace it with a new one and maybe have that one rebuilt and have spare on hand.
    18*36 oval
    TA-60 sandfilter

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