Gross bathroom smell in house
If your home smells like a waste treatment plant, you could have a leak of sewer gas, which contains toxic and potentially explosive components such as hydrogen sulfide (which could cause problems from eye irritation to unconsciousness) and methane (which can deplete oxygen leading to asphyxiation). One cause could be a bathroom that isn't used often. The pipes under a shower or sink include a U-shaped trap, which holds a small amount of water that blocks sewer gas from leaking back into the house. If a bathroom isn't used, this water could evaporate, allowing odors through. To fix the problem, simply pour a cup of water into the bathroom drain, says Lesh. For extra effectiveness, add a teaspoon of vegetable oil to stop the water from evaporating. If, however, you can't find the source of the problem, the issue could be that a vent pipe, which routes sewer gas up and out through your roof, is broken or clogged. In this case, call a home inspector or plumber to investigate. Check out more secrets home inspectors won't tell you.
10 House Smells You Should Never Ignore, Source:https://www.rd.com/list/smell-in-house/
