The house is a ~50 yrs old 2 story home with an unfinished basement. Public Sanitary Sewer line to street in front of the house. The problem is an intermittent sewer smell in the basement, most prevalent in the front of the house, near where the drain pipe from a 2nd floor shower penetrates the concrete slab floor and presumably joins the main that runs to the street. When the smell is present, it can be overwhelming. I don't recognize that it changes with any weather issue.
There are no obvious other signs - there is no water staining in the basement, specifically near where the drain pipe penetrates; the basement sink drains well; there has never been sewage water backing up into the basement floor drain. The floor drain is 15 ft from the area with the worst smell and there is no smell there.
How should I go about addressing this? I was thinking of getting a sewer line cleanout and a video of the inside of the pipe. Is it worthwhile to examine the stack? I don't think that it is the stack, since the sinks and toilets all drain well.
There are no obvious other signs - there is no water staining in the basement, specifically near where the drain pipe penetrates; the basement sink drains well; there has never been sewage water backing up into the basement floor drain. The floor drain is 15 ft from the area with the worst smell and there is no smell there.
How should I go about addressing this? I was thinking of getting a sewer line cleanout and a video of the inside of the pipe. Is it worthwhile to examine the stack? I don't think that it is the stack, since the sinks and toilets all drain well.
