WallyGater
New Member
I have a 5 year old house. Poured concrete foundation. In the basement there is a very large black pipe that goes through the foundation wall and I assume, out to the sewer hook up in the street. I have water leaking into the basement around that large black pipe. There was what looked like black roof tar around the pipe on the inside of the basement wall. I assume this was used as the sealant. I have no idea what is on the outside because it is about three feet under the ground. I was able to scape away the roof tar around the bottom portion of the pipe. It was soft there and kind of spongy. under this area was very damp. I then filled the area that I scraped off with hydraulic cement. Long story made short, it still leaks. How is the giant black sewer pipe basement wall penetration normally sealed? What is the correct way to do this? Do I have to dig up the outside dirt and see if it is sealed up in any way out there? Please help, I am tired of mopping up the water every time it rains.