Get matched with top aquarium service pros in Dixfield, ME

It is generally safe to stay in a house with sewer gas for a short time, even though short-term exposure is unpleasant. However, prolonged inhalation can cause headaches, nausea, or respiratory irritation. High levels of methane—which is in sewer gas—can pose an explosion risk in enclosed spaces. Ventilate the area and call a pro if you smell sewer gas or experience related health symptoms.

The bacteria already present in your septic system should be enough to break down solids in a properly maintained septic tank. However, if you’re in a DIY mood, you can try adding (well-mashed) rotten tomatoes to help the good bacteria fulfill their duty. Just make sure you give them a couple hours to work after flushing them down.

You could be smelling sewer gas in your kitchen because of a dry P-trap, clogged vent pipe, or leaking plumbing seals. If you smell a rotten egg odor, check your sink’s P-trap and plumbing connections first. A clogged or damaged vent pipe can trap sewer gas and push it back into your kitchen through the plumbing pipes. Loose or deteriorated seals around drainpipes can also allow sewer gas to leak out. If you can’t find the source, call a local plumber for expert help.

You may be able to neutralize septic tank odors by flushing about 1 cup of baking soda down the toilet weekly, although the best option to banish odors is to have the septic tank pumped regularly, about once every three to five years. 

To minimize odors, only flush human waste and toilet paper in the toilet, and avoid pouring coffee grounds, fats, oils, or grease down the drains, as this could cause clogs. Rather than trying to neutralize a septic tank odor, you should hire a pro to determine the source of the smell, since sewage gas can be toxic.