I am usual successful finding answers with enough searching but it seems I've hit a dead end here.
Just started a kitchen remodel in our 104 year old home. Looking to move our kitchen sink to an adjacent wall in the house. The issue I'm coming up against is that it looks like the outside wall where I need to install the drain / vent stack is sitting on the far side of an 8-10" foundation wall.
How on earth would one tackle running a drain down to the floor below (unfinished basement) from here?
In the photos attached you can see the floor after removing the rotted flooring and can catch a glimpse of the top of the foundation. The other pictures are for context of the wall location. The sink would go directly underneath the window.
Any help would be appreciated.!