Plumbing a basement bathroom using existing drain

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Old 02-17-17, 04:20 PM
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Plumbing a basement bathroom using existing drain

Looking for some guidance to rough plumb a basement bathroom tying into and existing drain stack. The drain is used by one bathroom the floor above (tub, toilet, and sink) but continues up through the roof as the vent. I have removed the concrete and exposed the pipe, can I simply tie into the existing drain at three different locations (toilet, shower, sinks) or do I need to combine drains? Also, where would I need to add vents? Can the existing drain act as a wet vent? It's very rudimentary, but a diagram is attached.plumbing.pdf
 
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Old 02-17-17, 06:56 PM
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No you cant pipe as you show.. You can pipe a bath in basement but it needs to tie in a certain way, espesially for venting purposes...

Ill post back during the weekend when I get more time.

Do a search of basement bath rough in and you will see many hits come up..
 
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Old 02-22-17, 10:09 AM
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Thanks for the heads up lawrosa. Most information that I can find deals with existing drains, already roughed in pipes. I'll keep searching.
 
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Old 02-22-17, 10:13 AM
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Old 02-22-17, 10:18 AM
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