I'm pretty embarassed to put this here, but our house has developed a gross odor. This started about 3 weeks ago and was very faint. With three grown men and a 7 year old, we all thought it was due to someone else not using a fan. Temps here have been in the teens or lower this entire time.
Well today the temp is up around 40 or so and sunny. Snow is melting and the scent is MUCH more noticeable.
Our house is on crawl-space that up until yesterday I thought was pretty much unaccessible. When investigating the smell I found a removeable panel that had been painted over. I went into the crawl space I could smell the odor and it was coming from below the ground. There were NO breaks in the plumbing that I could see. Some of the galvanized pipes had been replaced by PVC sometime a long time ago. There also was a labelled "Sanitary Sewer Cleanout" section of PVC with a cap. Might this all just need a cleaning? Could the downspouts be clogged or caused a clog in the system (leaves and such)?
Any ideas? We're calling a plumber tomorrow, but the smell is pretty gross.