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Old 07-31-2007, 09:57 PM   #1
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drain pipe size for kitchen sink, garbage disposal, and dishwasher ?


should i use 1.5 or 2 ?

thanks,

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Old 08-01-2007, 01:51 AM   #2
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drain pipe size for kitchen sink, garbage disposal, and dishwasher ?


I have 1 1/2" in my home... I think most of the fittings are designed for this size drain...

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Old 08-01-2007, 04:37 AM   #3
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drain pipe size for kitchen sink, garbage disposal, and dishwasher ?


1.5" for sink drain, 2" for shower drain.
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Old 08-01-2007, 05:52 PM   #4
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drain pipe size for kitchen sink, garbage disposal, and dishwasher ?


If it was my house I would use two inch for the branch and the vent and 1 1/2" for the trap arm from the wall out, staying with pipe size and not dropping to tubular execpt for the tailpieces.
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Old 08-04-2007, 10:47 PM   #5
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drain pipe size for kitchen sink, garbage disposal, and dishwasher ?


We use glue up pipe size LA traps instead of tubular as well, they are more ridgid long lasting. The 2" is a good idea if it is already there but, I wouldn't rerough just to up size.
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Old 08-05-2007, 12:23 AM   #6
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drain pipe size for kitchen sink, garbage disposal, and dishwasher ?


Code requires KS drain line to be 2" after the trap arm.

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