I am experiencing a strong smell of "sewage" in my bathroom (and sometime outside the side of the bungalow next to bathroom). This smell is intermittent and NOT linked to use of toilet for #2's.
To complicate things the bathroom has a 2 - 3 feet void underneath the tiled floor. The floor is not tiled underneath the bath.
My 11 year old bath has a "coating" of something on the base of it (some sort of insulation?), could this be causing a smell, as when I take the panel off there is a smell?