This invention provides a method of controlling microbes in a drinking line system when poultry and/or swine are absent from the area where the drinking line system is located. The method comprises I) contacting the drinking line system and an aqueous microbiocidal solution； and II) flushing said drinking line system with water and/or an aqueous solution comprising one or more scale removers at least once after said contacting with said aqueous microbiocidal solution, wherein said aqueous microbiocidal solution is formed from components comprising water and a concentrated aqueous biocidal solution selected from A) an aqueous biocide solution having an active bromine content of about 50,000 ppm or more, which solution is formed from components comprising water and (i) bromine chloride or bromine chloride and bromine, with or without conjoint use of chlorine, and (ii) overbased alkali metal salt of sulfamic acid and/or sulfamic acid, alkali metal base, and water, wherein the relative proportions of (i) and (ii) are such that the atom ratio of nitrogen to active bromine is greater than 0.93, and wherein the pH of the composition is greater than 7, or B) an aqueous biocide solution formed from components comprising water and (i) at least one bromide source selected from ammonium bromide, hydrogen bromide, at least one alkali metal bromide, at least one alkaline earth metal bromide, and mixtures of any two or more of the foregoing, (ii) a chlorine source, optionally (iii) at least one inorganic base, and optionally (iv) sulfamic acid and/or a metal salt of sulfamic acid, or C) a combination of A) and B). Any degradation of the materials of the drinking line system from contact with said aqueous microbiocidal solution is minimal.본 발명은 급수 라인 시스템이 위치되어 있는 구역에 가금류 및/또는 돼지가 존재하지 않을 때 급수 라인 시스템에서 미생물을 제어하는 방법을 제공한다. 본 방법은 I) 상기 급수 라인 시스템과 살균 수용액을 접촉시키는 단계； 및 II) 상기 살균 수용액과 접촉시킨 후에, 상기 급수 라인 시스템을 물, 및/또는 하나 이상의 스케일 제거제를 포함하는 수용액으로 1회 이상 씻어내는 단계를 포함하되, 상기 살균 수용액이 물, 및 A) 약 50
