The treatment of water includes concerns regarding maintaining turnover rate, filtration, disinfection and proper usage of chemicals. The entire volume of pool water has to be treated and circulated at regular intervals of time. Thus swimming pools have to be equipped with a re-circulating system including filtration and disinfection facilities to provide water quality consistent with specified chemical and physical standards. Swimming pool recirculation and disinfection equipment are to be operated continuously. Castle Plus benchmarks itself to international companies thus strictly adhering to provide quality treatment of water.