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Old 02-02-2007, 06:37 PM   #1
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Basement Bathroom


I am going to put a bathroom in a basement. It will have a shower, toilet and lav. There is a 4" floor drain not to far from the wall where the fixtures are going. Somebody recently tied a washing machine drain line into the floor drain line. I was planning on running a 4" line for the toilet and a 2" line for the shower and sink. Connect the shower and sink into the 4" toilet line with 2-4x2 wye's. There is a vent for the washing machine line and I was going to vent the shower and sink in the wall and then connect to the washing machine vent.

Is this correct?

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Old 02-02-2007, 07:48 PM   #2
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Where are you at?

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Old 02-02-2007, 08:48 PM   #3
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chicago

Here is a drawing: http://www.websitecr.com/images/bathroomlayout.pdf

Last edited by lambert; 02-02-2007 at 09:27 PM. Reason: added link
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Old 02-03-2007, 03:18 AM   #4
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This is how we do it, your code may or maynot be like this, you will need to know your codes, here each fixtures requires a vent for each fixture, one for toilet, shower and lav, then they can all connect to one vent, min vent size for toilet 2"

If your adding, get a permit and have the proper inspections, this way you know it meets code requiremenrs.
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Old 02-03-2007, 04:57 PM   #5
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"Ron the Plumber", you ROCK!

One more question, how would I vent the toilet?
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Old 02-03-2007, 05:24 PM   #6
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Vent the toilet in the same wall as the sink and shower will vent into. Vent it on a wye / 45 combo.
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Old 02-03-2007, 05:33 PM   #7
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4x2 wye?
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Old 02-03-2007, 07:42 PM   #8
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3 x 2 wye
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Old 02-03-2007, 08:35 PM   #9
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So the toilet drain should be 3", I was going to use 4".

Just an fyi, the drain line for the washing machine is tying into the floor drain. So can I tie the main that the bathroom fixtures are running in anywhere between where the washing machine is draining and the floor drain?

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Old 02-03-2007, 08:36 PM   #10
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I can be 3" if you want, or 4" if you desire it to be.
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Old 02-03-2007, 10:23 PM   #11
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Thanks Ron, you've been a big help!

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