A written record of chlorine residual and pH checks should be maintained. Samples should be collected during periods of heaviest swimmer load and should be varied in order to get a representative cross section of water quality.
(1965 Code of Ordinances, Chapter 9, Article IV, Section 9-62)
The minimum chlorine residual of the pool water shall be maintained at two-tenths (0.2) to five-tenths (0.5) parts per million or maintained with other disinfectant methods approved by the Texas Department of Health. However, chlorine residuals as high as one (1.0) part per million are not harmful and may be beneficial during heavy swimmer loads and as a deterrent to algae.
(1965 Code of Ordinances, Chapter 9, Article IV, Section 9-63)
The water shall not be permitted to show an acid reaction to a standard pH test and should be maintained at a pH of 7.2 to 7.6.
(1965 Code of Ordinances, Chapter 9, Article IV, Section 9-64)
The pool shall be constructed in conformance with good public health engineering practices, as required by "Design Standards for Public Swimming Pool Construction," Texas Department of Health.
(1) 
Proper water filtration equipment and recirculation equipment should be provided.
(2) 
Pools should be equipped with skimmers or scum gutters.
(1965 Code of Ordinances, Chapter 9, Article IV, Section 9-65)
Bathhouses where provided shall be maintained in a sanitary condition.
(1965 Code of Ordinances, Chapter 9, Article IV, Section 9-66)
Swimming suits if rented or loaned shall be properly laundered after each use.
(1965 Code of Ordinances, Chapter 9, Article IV, Section 9-67)
Safety rules outlined under "Safety Around a Swimming Pool" in the Texas Department of Health's "A Training Course in Swimming Pool Operation" and "Design: Standards for Public Swimming Pool Construction" shall be followed.
(1965 Code of Ordinances, Chapter 9, Article IV, Section 9-69)
Swimming pool user capacity guidelines outlined in Section 22.0 of the Texas Department of Health's "Design Standards for Public Swimming Pool Construction" shall be followed.
(1965 Code of Ordinances, Chapter 9, Article IV, Section 9-70)
Clarity of the pool water is ordinarily tested by visual inspection, but a six-inch black disc painted on a white background may be used. This device on the end of stout cord is thrown into the deep end of the pool and observed from the pool edge.
(1965 Code of Ordinances, Chapter 9, Article IV, Section 9-71)