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Thread: double bathroom sinks and washing machine through 2 inch drain - no vent - okay?

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    DIY Junior Member leet's Avatar
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    Sep 2013
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    Charlotte, NC
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    Question double bathroom sinks and washing machine through 2 inch drain - no vent - okay?

    Hi,

    Is it permissible and advisable to drain two bathroom lavs and a washing machine through a single 2 inch drain pipe with a run of less that 4 feet to the stack with no vent? The stack in my images also has a bathtub drain and toilet tied to it - all of this on the ground floor with no other drains or vents on this stack. I have provided two images - a photo "current" and the other image is a mock-up of my plan. I intend to move the washer drain over (laundry room is behind this wall) and add two bathroom sinks in place of a single sink.

    Name:  current.jpg
Views: 2192
Size:  55.9 KBName:  move laundry drain - add 2 sinks to same drain.jpg
Views: 3028
Size:  52.6 KB

    Thanks for your help,

    Lee
    Last edited by leet; 09-11-2013 at 07:25 PM.

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