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Old 02-24-2010, 02:30 PM   #1
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1 1/2" shower drain


i am going to be putting in a new shower pan and when the old one was removed I discoverd that the shower drain pipe is only 1 1/2". I never had a problem with the drain when I was using the shower so is it necessary to replace with 2"? If not, what is the best way to tie in to the 2" Oatey PVC Drain for Tile Shower Bases?
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Old 02-25-2010, 06:30 AM   #2
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1 1/2" shower drain


Since you are redoing the shower, tecnhically, it needs to brought up to code(2"), to where it connects to the main. But there are reducing fittings available. Install a 2" trap as needed, then neck down to 1 1/2. But that will become a constant clog point.
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Old 02-25-2010, 09:09 AM   #3
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1 1/2" shower drain


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Originally Posted by Just Bill View Post
Since you are redoing the shower, tecnhically, it needs to brought up to code(2"), to where it connects to the main. But there are reducing fittings available. Install a 2" trap as needed, then neck down to 1 1/2. But that will become a constant clog point.


In my opinion that will be worse than leaving it 1-1/2. Code does not allow this at all.

You need to crawl underneath and see if your shower drain is visible below. Follow it back to where it intersects another pipe and take a picture for us.
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Old 02-25-2010, 05:09 PM   #4
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1 1/2" shower drain


reduction in size is bad juju
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