Laundry room smells like gas

[52-80 19277]

My folks laundry rooms often smells strongly of what seems to me like a mixture of natural gas, durian, and that lingering musty laundry smells. 
 

How do I check for what it is? Is there some sort of organic gas sensor detector thing to buy?

They dont keep anything unusual in that room - only detergents and laundry shit. They dont let clothes sit around. The smell doesnt exist in garage or adjacent room. 
 

[Jerry Callo 8830]

Gas dryer?  If so, I'd get the plumbing checked.

[RPM 26429]

Do they have a gas dryer? Check the pilot light, gas line and all fittings. You can get a detector or use soapy water. Also check the lint filter. It could be clogged and not moving the amount of air it should. Same with the exhaust vent.

Edited December 28, 2023 by RPM

[Pato del Muerto 52872]

Light a match and if the whole house explodes then there’s natural gas in the air. 

[66BUFF 2574]

Does the laundry room have a floor drain?  Could be a dry P trap

[South Austin 52688]

It might be the bypass line.

[dcbc 14568]

33 minutes ago, South Austin said:

It might be the bypass line.

Might want to check the fetzer valve as well.

[Gene Parmesan 4023]

Maybe your mom just rips huge farts in there

[Pato del Muerto 52872]

3 minutes ago, dcbc said:

Might want to check the fetzer valve as well.

You assume he has a Langstrom  7” wrench?

Edited December 28, 2023 by Pato del Muerto

[Parliament 14372]

3 hours ago, 66BUFF said:

Does the laundry room have a floor drain?  Could be a dry P trap

My first guess.  Any drain with a trap, pour a gallon of water down.  (If a drain is rarely used, the water in the drap evaporates and fart gasses escape.)

[RPM 26429]

2 hours ago, Gene Parmesan said:

Maybe your mom just rips huge farts in there

I was going to suggest this earlier.

[52-80 19277]

On 12/28/2023 at 8:18 AM, RPM said:

Do they have a gas dryer? Check the pilot light, gas line and all fittings. You can get a detector or use soapy water. Also check the lint filter. It could be clogged and not moving the amount of air it should. Same with the exhaust vent.

Gas line doesnt seem to bubble but I did a shoddy job of checking. Kinda weird they hooked up with this stiff accordian tubing thing instead of rubber but whatever. 

Overhead exhaust fan pulls air fine (paper test). 

Theres no visible floor drain. 

[RPM 26429]

14 minutes ago, 52-80 said:

Overhead exhaust fan pulls air fine (paper test). 

No, the dryer exhaust. There is a vent in the bottom that feeds outside.

If that gets clogged it screws everything up.

 

[SimonBolivar 10961]

On 12/28/2023 at 8:18 AM, RPM said:

Also check the lint filter. It could be clogged and not moving the amount of air it should. Same with the exhaust vent.

I do this twice a year or so anyway. It's really easy to do and its middle-aged white man "fun" to clean it out.

[Bevo&Pevo 5388]

Are they on a water well?