Changing pipes when replacing the disposer ?

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Old 08-24-15, 10:55 AM
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Changing pipes when replacing the disposer ?

I need to replace the kitchen's garbage disposer and wonder if I need to replace those plastic pipes connecting the other sink and trap. Will the existing plastic seals hold up?
 
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Old 08-24-15, 11:12 AM
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Welcome to the forums.

Unless you will be changing the unit for an identical model then more than likely there will need to be some pipe work changed/replaced. Working with PVC is fairly easy. There shouldn't need to be any major changes required.
 
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Old 08-24-15, 02:36 PM
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Thanks. I was thinking maybe I need to cut the outlet tube that comes with the new garbage disposer but I am not sure if I can re-use all the existing PVC pies.
 
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Old 08-24-15, 02:48 PM
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What makes you think it would need to be replaced?
PVC should last forever.
We have no picture so where all going to have to guess.
 
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Old 08-24-15, 03:14 PM
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Not the pipe. I am more concern about the seal/washer.
I ask the question because I have not done this job beore and just want to be sure before I start to take stuff apart.
Thanks.
 
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Old 08-24-15, 03:17 PM
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The seal/washer on the sink ? That will come with the new disposer.
Seal/washers on the PVC fittings...... no problem to change if needed.
 
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Old 08-24-15, 04:06 PM
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You are talking about slip tube fittings I assume, white or black PVC.

At a minimum, you will need to remove waste arm going to other bowl (horizontal tube) in order to fit new disposer in... It sounds like you also need to shorten discharge elbow from disposer. Make square, clean cuts and sand off burrs. Clean any obvious mineral build up from tubes and use new 1-1/2" slip washers. Check for leaks after assembly and the next day, some leaks will take time to develop.

If you are connecting a dishwasher, don't forget to knock out the disposer inlet plug or you will have a flood.
 
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Old 08-25-15, 11:42 AM
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Thank you. I guess I will go pick up some 1.5" washers before I start.
Also, is the American Standard garbage disposer from Costco any good? It is $80 and comes with a 10-yr warranty.
 
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