check garbage disposal

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Old 07-19-17, 10:01 AM
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check garbage disposal

I have to replace my kitchen garbage disposal. I have a used one. How to check it if it is working with multimeter or others?
 
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Old 07-19-17, 11:09 AM
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Any I have dealt with have a hex on the bottom that you can use to free a clog, so you can turn that to make sure it turns okay. If so, it's quite likely okay, but you could put a pigtail on it and plug it in.
 
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Old 07-19-17, 12:01 PM
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In addition to making sure it spins freely as mentioned, many have a reset button on them that may have tripped due to a clog. Something like a uncooked popcorn kernel can cause it to stop spinning and trip the reset button. Pretty easy to hook it up quickly to see if it works. Does not have to be hooked on the actual sink to test it.
 
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Old 07-19-17, 08:17 PM
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The reason I have to replace is it leak from reset button badly.
 
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Old 07-19-17, 09:29 PM
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Disposers are not repairable IMO, or not worth it. Plug your used disposer in and see if it works,
Hold the unit firmly, the motor has quite a bit of torque.

Look inside the top of the used one also and inspect for corrosion. A disposer can look fine from the outside and actually be shot on the inside. I always recommend a new unit unless it's obvious it's new.
 
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Old 07-20-17, 11:59 AM
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the outlet of new disposer in Home depot or Lows is elbow piping and my current is a straight piping. I try do less to connect current pipe to the disposer and my friend give me a used one, which has straight outlet pipe/flange as mine. How difficult to change pipe to go elbow, if I buy new one and how to do? What other parts I need to buy?
 
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Old 07-20-17, 03:09 PM
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Discharge pipe is usually held on with 2 screws. just take them out and swap pipes. Should be a rubber gasket there also. if gasket bad can be got st local hardware store.
 
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