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Thread: Adding Utlity Sink - Drain and venting

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    DIY Junior Member NewGuy's Avatar
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    Jan 2013
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    Default Adding Utlity Sink - Drain and venting

    I am adding a utility sink next to a washer in a single story home. Is it okay to have a 1.5" branch connect to a vertical 1.5" sanitary T with a bushing on the bottom connecting to a 2" elbow. There is a 1.5" cleanout and dry vent on the top of the Sanitary T. There are no other drains attached (just the sink). I would use a 2x2x1.5" sanitary T to make the connection but it puts the drain line too low to provide a 1/4" per foot slope. the branch line is less than three feet to vent/San T.

    Basically, this would be a single branch draining in to a stack of the same size. However, the stack would immediately increase to 2" within 1" of the connection.

    I was not able to attach files in this forum for some reason. However, the sketches are attached in the following forum: http://www.diychatroom.com/f7/adding...y-sink-168000/

    I appreciate any help you can provide.
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    Last edited by Terry; 01-02-2013 at 03:21 PM.

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