Do you occasionally smell what could be raw sewage in your home? It's not an issue meant to be covered up using air fresheners or scented candles. It's possible that you have a plumbing issue that is causing sewer gasses to leak into your home, which is a very dangerous problem. Those sewer gasses actually contain methane, which can be explosive or make you very ill due to exposure. That's why you must identify and fix the problem immediately.
Check Floor Drains
A typical source for sewer gases are the drains in your basement floor. If the trap in the drain dries up, those gasses from the pipe can find their way into your house. You can test this idea by dumping a bucket filled with water down every drain in your basement. It should fill up the trap with water, which blocks the gasses coming from the sewer. If you notice the smell going away immediately after doing so, that was the solution to your problem.
It helps to add a disinfectant with a pleasant aroma to the water before pouring it in. It will help kill bacteria that may be down there and freshen your basement's air. You'll also want to air out your basement after filling the drains; you can do so by opening any windows or doors that lead outside. This will help get rid of any looming odor caused by the sewer gas that was leaking in.
If the smell does come back, the leak is originating from another source.
Check Leaking Pipes
A small leak can be a big enough problem to allow sewer gas into your house, and it will be incredibly difficult to find these leaks when the pipes are behind finished walls. You'll need to expose your piping to figure out if these pipes are the problem.
The best way to find a leak in plumbing a pipe is to use a tracing dye that is biodegradable. You add it to your home's toilets, bathtubs, and sinks by letting the dye flow down the drain. This dye will eventually leak out from pipes that are damaged, letting you identify the pipe causing the problems.
Sewer gas is a serious problem that should not be ignored. If you do not know how to repair a drainpipe on your own, contact a plumber from a company like Roto-Rooter to do the repair for you. It is the best way to ensure that your home will be free of the harmful gas that could be coming from your sewers.