I recently hired a general contractor to help with basement flooding. He thought the water in the basement was coming from a heavy rainy season. He told me that my sump pump was broken and he replaced it. He installed a pipe that takes the water up from the pump and tapped that pipe into the vertical waste drainage pipe leaving the house. The water was actually coming from a broken HVAC hose. However, 6 months later I am selling the house and being told by others (who are not really sure) that work like this (tapping into the main vertical waste pipe) requires a professional plumber to do this and a permit. Also,the pipe installed has too many 90 degree turns to be effective. Not being a plumber, and having no knowledge of plumbing, I’m not sure if this is true or how to rectify this. I found this site and am hoping for thoughts and/or advice. I am in Pennsylvania. Thank you for your help!

i think the bigger question is whether the ground water is allowed into the city/town sewer system .
some allow it, most do not.
check with your city or town to make sure.
if it is not allowed then you must remove the connection and pump the water outside.