Here’s a weird one: your plumbing system breathes. It has vents that go up through your roof to equalize pressure.
If a vent is blocked by a bird’s nest or leaves, air pressure changes. It can suck the water right out of your P-trap.
Suddenly, your sink smells like the inside of a pumpkin left in the sun for a week. That’s nature, baby.
When to Call the Exorcist (Oops, Plumber)
If you pour water and the stink doesn’t go away? You might have a broken vent or a cracked pipe. That’s pro territory.
Also, if the smell comes and goes with the weather? That’s a vent issue. Wind can blow down the pipe and push gas back up.
Bathroom Smells Like Sewage? What Plumbers Find First
Don’t panic. This is common. It’s like a cold: annoying, but usually fixable.
