Russians are complaining in droves about the quality of their tap water, with skin and hair problems occurring after a shower, the media reported. The situation is worst in Kalmykia: in one district, up to 100% of samples failed sanitary and chemical tests. Violations were also detected in Moscow, Ryazan, Tambov and other regions. Excess iron, manganese and chlorine are detected in the water. Worn pipes and network failures are cited as causes.