Tourists visiting Mediterranean countries like Greece, Turkey, and Bulgaria are being advised not to flush toilet paper down the toilet. This is due to aging and narrow sewage systems common in these areas, which are easily blocked by paper. The warning, reported by Blikk, aims to prevent plumbing issues and potential disruptions for travelers. Unlike many Western countries, these destinations require tourists to dispose of toilet paper in waste bins. Failure to comply can lead to clogged toilets and costly repairs. Travelers should be aware of this local practice to ensure a smoother vacation experience and avoid inconveniencing local infrastructure. The issue stems from infrastructure unable to handle the volume of waste, including toilet paper.