I have a question about the odors that come out of the vent pipe
of a septic system.
I have a house that has a septic system. I had the
septic tank pumped out two years ago when I first moved in. I have
noticed that on some days, there is a slight sewage smell on the front of
the house after a shower/flush/wash cycle. I have determined that the
smell does not come from the septic tank or the drain field directly, but
rather from the gases coming out of the vent pipe on the roof. These gases
come down the roof to the front of the house. The house is on the
less windy side of a mountain and is surrounded by trees.
My question is: Is this smell normal, or is it a sign of a problem with
the septic tank? Looking around the web, I have found articles that say
there shouldn't be an odor coming from the vent pipe, and other articles
which say the smellis normal and can be minimized with a filter.
Thanks for any advice.