old sewer pipes

A few years ago we added onto our house. The addition now sits on part of what was the backyard. The sewer clean out pipe is now covered by the addition, but it was capped off and relocated by a professional plumber. Each fall when the temperatures begin to drop a bad smell comes from that...

Hello. I moved into a flat of 3 story wood house that is about 100 years old. There is a problem that the sewer pipes for my flat have been clogging every half a year. My flat sewer pipes are separate from the rest of the house, so noone else has this problem. Some days ago I decided to...