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Diaphragm pump won't pump

My 12v DC pump got clogged by what appeared to be hair. I clean the inside of the poump,I check the motor, its working, the eccentric rotor is free to rotate. But it now does not pump. I didn't remove the diaphragm because I didn't want to damage it. The inlet is clear. The outlet can not be seem.

What's wrong and how would you fix it?

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  • charles46902 Mar 17, 2009

    This pump is SHURflo 8000-543-236 with a 12v DC motor capable of 1.8 gpm

  • Greg Bernett
    Greg Bernett May 11, 2010

    Sounds like it is mucked up on the inside. For one thing....do not over pressurize it, you'll blow the diaphragm in it. Researching this....what make and model of pump?

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Check the valves to ensure they are functioning... I'm not sure what kind of pump you have but wilden diaphragm pumps ball valves... you could have hair in this area not allowing the balls to sit on their seats. this would cause your pump to not work.

Posted on Mar 16, 2009

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May 19, 2009 | General Plumbing Pumps

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