GARAGE FLOORING NO FURTHER A MYSTERY

Me neither, but in my office they don't need to piss him off and I do want to inform the system checker he is quite mistaken...Two times afterwards garage smelled like rotten fish. I believed P lure was dry so I ran h2o down drain. Upcoming day total home smelled like rotten fish. Garage floor drain contains a 12" X 12" steel grate. I eradicated st