Sewage oder is noticeable throughout the house, some day worse than others. The order seems to be carried through the airducts which smell of sewage even when the heat or ac are off. Please help.
Thanks

There are a few problems that can cause this. The most common are failed wax ring on a toilet, a trap has gone dry maybe in the basement floor, or your vent stack is clogged. If you have no draining issue we'll put the stack as #3 for now. Pour water in every drain throughout the home including all floor drains, sinks tubs, etc.. Tell us after a day if tere is any improvement, we'll be here