Joe joe
New Member
Can I add a kitchen sink drain to a 2 inch bathtub vent. The vent is exactly center to where the kitchen sink drain should be. the 2 inch vent goes through the roof. i know i can wet vent bathroom group.
vertical wet vent kitchen sink
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No.
Kitchens are not part of the bathroom group for wet venting in Washington UPC code.
When a lav drains, it drains through a 1-1/4" tail piece, and pretty slow at that.
A kitchen drains with 1-1/2", and can be a much deeper sink, holding more water.
area
1-1/4", 1.227
1-1/2", 1.767
Kitchens are not part of the bathroom group for wet venting in Washington UPC code.
When a lav drains, it drains through a 1-1/4" tail piece, and pretty slow at that.
A kitchen drains with 1-1/2", and can be a much deeper sink, holding more water.
area
1-1/4", 1.227
1-1/2", 1.767
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Joe joe
New Member
Thanks I appreciate the reply. 99% of me knew the answer the 1 percent was hoping I wouldn't need to open up concrete. Thanks So much
