new plumbing
so my house was built in the 1950s and there were original 1950s cast iron drain pipes when we moved in. the original owners replaced most of the exterior drain with PVC in the early 1990s (from the road up), and we replaced almost all of the main drain in the basement circa 2019 (there was a blockage and the cast iron was so corroded that a plumbing snake would punch right through the metal). so all the original cast iron left as of present day was the vertical portion traveling between floors and the remaining 14ft of horizontal outside running through to the inside of the foundation wall.
the cap on the pipe protruding from the wall was already cracked and corroded, and was already weighing on me - then an exterior blockage backed it up and the water pressure pierced through the cracks and it was leaking poo water onto the basement floor. gross
so we finally got a professional to dig up the remaining 14ft of cast iron, bore through the foundation wall, replace it with PVC, and re-cement/seal the wall up.
the whole job I had been avoiding dealing with literally took one guy half a day