SoloCamper
Member
Hi everyone. I am at my wits end so joined this great community. I have a 2013 Sierra fifth wheel with 1.5 bathrooms. There is an awful smell coming from under my trailer. A few weeks back the smell was inside my trailer but after hours of internet searching I realized it was my air admittance valve. That was a cheap easy fix after becoming a contortionist to do it. The smell was gone for a week both inside and outside the trailer. Now it is only under my trailer that has started to smell. First thinking it was propane, even though I didn't have it turned on I lit the stove removing all gas in the lines and disconnected the tank. The smell persisted. Our campground repair guy came out and said it was the septic. I was leaking a small amount from the back grey line. He readjusted it and tightened it and said I was good to go. Nope! The front black shows no leakage. The front grey pull is unfortunately broken but the tank has empty for years now. When there is a breeze you cannot smell anything but when there isn't, oh my! It smells from the back of my trailer and to my deck in the front where I work. It is nauseating! What can I check? What could it be? Please any help is welcome!!