Comparison of Chlorinated Cyanurates with Other Chlorine Disinfectants: In Swimming Pool Operation

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Abstract
Data collected from the practical operation of swimming pools in St. Louis County, Mo., in 1960 and 1963 were evaluated statistically to compare the disinfecting ability of the chlorinated cyanurates with other sources of chlorine. The results from each period were evaluated separately since the number of controlled variables was different in 1960 and 1963. Both sets of data showed that pools treated with chlorinated cyanurates had a better disinfection record than pools treated with other common chlorine sources. The good disinfection record of pools treated with the chlorinated cyanurates apparently was related to the uniform level of the chlorine residual provided by the stabilizing action of cyanuric acid. Bad housekeeping practices increased the disinfection failures. Good disinfection was obtained with any chlorine source investigated provided adequate available chlorine residual was maintained continuously in the pool.

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