Question about Pentair 1 hp WhisperFlo InGround Pool Pump WFE24 ()

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I have a whisperflo. I've ran the motor without water and it's quiet. Add water and it makes a pretty good racket (not a bearing whine). I've even tested without my filters to eliminate head pressure) I'm not getting air. I've replaced all of the o-rings (just 2 of them, 1 shape of housing and 1 on the front of the (diffuser?? , about the size of a softball)) I've pull front half of the impeller apart and pulled the cover off to clean. It's immaculate. Here's where I'm stuck...my impeller has a screw in the shaft that I've removed (left handed). does this hold the impeller on, or is the impeller itself also screwed onto the shaft?

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Yes the impeller is screwed on right handed normal thread. *** Info below pasted form one of my other posts *** You need to lock the motor and unscrew impeller. Depending on the motor, you remove a cap in the middle of the tail piece and hold with a wrench, (usually 9/16") or remove a cap that covers the whole end and grab the shaft with a wrench (usually 7/16") by sliding it under one of the components (not sure exact part off top of my head have to look at it) and then turning impeller. If the impeller has a bolt or screw in the middle remove that first. (you already did this.) It should be reverse thread so make sure you don't turn the wrong way and break or strip. If there is no screw, or after you've removed it, just spin the impeller off (it should be counter clockwise standard thread). If you can't do it by hand and assuming you don't have an impeller wrench, be very careful and use a large pliers, pipe wrench, or strap wrench to loosen it.

Posted on Sep 28, 2010

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