JeffeVerde
Member
I'm suddenly smelling sewer gas in a bathroom when the attic fan is on, and I can't figure out the source (and yes, I flushed ). We use the attic fan daily, and the smell just started today. Turn the attic fan on, and you get the sewer gas within a minute or two. Turn the fan off, and once the smell dissipates there's no more sewer gas smell. I have -
The attic fan blows into the attic and then passively vents through the gable and ridge vents. So the attic is pressurized when the fan is on. The house was built in 2014 and it has ABS waste piping.
What's the next step? I'm stumped.
- run water at all the fixtures to ensure the traps are full
- filled the sinks and tub with water and blocked the overflows
- cleaned the traps on both sinks
The attic fan blows into the attic and then passively vents through the gable and ridge vents. So the attic is pressurized when the fan is on. The house was built in 2014 and it has ABS waste piping.
What's the next step? I'm stumped.