I own an old house (1910) in downtown Indianapolis. I don't think I have a septic system, I think my pipes run to the city sewage. The drain in my unfinished basement (where my A/C condensation drains to) smells horrible! It has a bit of standing water in it but never overflows. Now my first floor is beginning to smell because of the basement, and every shower and sink drain smell as well. Please tell me what I need to do?
Thanks!