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Plumbing in the Home/adding a sink to basement ejector pit


Hi, I would like to add a sink drain to my existing ejector pit, but do i drill another 1 1/2 hole in the cover of the pit, or can I cut the vent pipe the pit and add a y fitting?

Technically, this would be called a wet vent and the portion that was being use as a drain would need to be 2 pipe sizes bigger below the Y.  That being said (for code compliance) you could probably get away with it if the drain part was not more than a foot or so long.

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Dana Bostick


Pretty much any residential plumbing questions. For "item specific" details such as a specific model of fixture, I will need to research and there may not be any useful information available. Note: I live and work in Southern California. We do not, as a rule, use hot water or steam heating systems, oil fired boilers or private water wells so my knowledge in those areas is pretty limited. There are others here on AllExerts that can probably answer those questions better.


Retired, Licensed General Contractor with Plumbing license. Active Home Inspector, Litigation Consultant and Infrared Thermographer, Online Marketing specialist.

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