Apparatus and installations for water supply, namely, pollutant traps, sediment and liquids separator; Apparatus and installations for water distribution, namely, hydraulic treatment pipes; Apparatus and installations for water filtration; Apparatus and installations for water purification; Apparatus for sanitary purposes, namely, pollutant traps, sediment and liquids separators; Apparatus and installations for water treatment, namely, drainage water treatment tanks, and water treatment appar...