Probably the greatest fear of a swimming pool operator is that of a bather contracting a disease from the water, and there are many candidates from folliculitis to cryptosporidiosis and legionnaires' disease. So water hygiene is top of the priorities, and disinfection by halogenation (chlorination or bromination) is the traditional weapon against these water-borne pathogens. However, high levels of chlorine or bromine can result in complaints from bathers and even cause skin itching and rashes. A bad bather experience is not good for business, especially if the pool is part of a hotel or spa, nobody wants to come home from holiday feeling unwell!
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