curious_george
New Member
I have a kitchen on the main floor and right below is an ejector pit that serves a bathroom(toilet/shower/sink) & floor drains. This is a 1950s house with a finished basement.
Here are the drain connections for the basement bathroom:
-> [shower drain{below concrete}]
----> [toilet drain{below concrete} + shower drain]
--------> [toilet + shower + sink drain{above concrete}]
----------------> section1{below concrete}: empties to ejector pit inlet
----------------> section2{above concrete}: 1 1/2" pipe going straight up
I assume the 1 1/2" pipe is the vent stack, and I assume the sink from the kitchen on the main floor ties into this vent as well. There's no roof penetration at the corresponding location, so it possibly vents directly into the attic or in the attic it shoots across the building into the 4" stack from the bathroom on the main floor.
Question is: can the ejector tie into this same 1 1/2" vent that the basement bathroom + main floor kitchen use? This is the approach one plumber wants to take. I've read threads related to this but can't get a clear picture if it's allowed under the Chicago plumbing code.
Here are the drain connections for the basement bathroom:
-> [shower drain{below concrete}]
----> [toilet drain{below concrete} + shower drain]
--------> [toilet + shower + sink drain{above concrete}]
----------------> section1{below concrete}: empties to ejector pit inlet
----------------> section2{above concrete}: 1 1/2" pipe going straight up
I assume the 1 1/2" pipe is the vent stack, and I assume the sink from the kitchen on the main floor ties into this vent as well. There's no roof penetration at the corresponding location, so it possibly vents directly into the attic or in the attic it shoots across the building into the 4" stack from the bathroom on the main floor.
Question is: can the ejector tie into this same 1 1/2" vent that the basement bathroom + main floor kitchen use? This is the approach one plumber wants to take. I've read threads related to this but can't get a clear picture if it's allowed under the Chicago plumbing code.