We had bath fans installed in our 100 year old home and I now notice when the door is closed and the fans are on that it will pull air through a 1/4" hole in the medicine cabinet from the wall cavity. It has a sewer gas type smell. You can only smell it when the fan is on.
My question is how big of a priority should it be to fix it? The bathroom is tiled up to about 5 feet which makes creating an access hole to investigate challenging. We have aspirations at some point in the future of renovating the bathrooms, but it certainly isn't anything that is on our radar now. I suppose this question can be broken down into first if acute spritzes of sewer gas small are much of a health concern and the second is if having a volume of sewer gas building up in the cavity behind the mirror causes any structural damage over time to the wall.
What do you think? We had two plumbers out and one thought its not an emergency situation but should be resolved in a few years. The other couldn't even really smell the sewer gas and thought it might be the smell of old wood (he could also not want to go on a fishing expedition though). Thank you!
My question is how big of a priority should it be to fix it? The bathroom is tiled up to about 5 feet which makes creating an access hole to investigate challenging. We have aspirations at some point in the future of renovating the bathrooms, but it certainly isn't anything that is on our radar now. I suppose this question can be broken down into first if acute spritzes of sewer gas small are much of a health concern and the second is if having a volume of sewer gas building up in the cavity behind the mirror causes any structural damage over time to the wall.
What do you think? We had two plumbers out and one thought its not an emergency situation but should be resolved in a few years. The other couldn't even really smell the sewer gas and thought it might be the smell of old wood (he could also not want to go on a fishing expedition though). Thank you!