<P>PROBLEM TO BE SOLVED: To provide a pipe cleansing germicidal composition imparting preferable hygienic circumstances by destroying the ecosystem of bacteria, Legionella bacteria, hiding in water-based equipment, protected with organic materials such as biofilms and slime to escape from germicidal agents and repeating revivalistic proliferation. ??<P>SOLUTION: The pipe cleansing germicidal composition comprises a compound of a polyoxyethylene alkyl ether, an alkylamine oxide, a quaternary ammonium salt and 2-phenoxyethanol as essential ingredients, and is daily used by a simple method. ??<P>COPYRIGHT: (C)2010,JPO&INPIT ??
