Hi, I have a condo and a bathroom upstairs. In the recent couple of months I have been trying to find out where a gas smell from my tub's shower drain is coming from. I have checked the trap and it's clean, I have checked under the tub (I have two access panels that pull off) and found no leaks after a shower or even a bath. There is no water stains on the plywood under the bath. The drain and trap are located in the ceiling of my downstairs half bath with a vent cover0. I have no smell down stairs at all in my half bath ad I have pulled off the vent cover and checked for any leaks down stairs nothing.
Can someone help me figure out where the gas/sewer smell is coming from. I have sewer hookup. I had someone tell me it's my vent pipe in the wall leading up to my roof and they told me there could be a hole in it. How could that be? Could that cause the smell?
Help please...
Tony