- (a) All pools/spas shall have a functional and accurate test kit or equipment for measuring free and combined chlorine or bromine concentration, pH, total alkalinity, and cyanuric acid (if stabilizer is used in pool/spa water).
(b)
- (1) Other test kits may be required when deemed necessary by the Department of Health.
- (2) The use of orthotolodine (OTO) tests for chlorine is prohibited. N, N-diethyl-p-phenylenediamine (DPD) test kits shall be provided and capable of measuring the minimum and maximum allowable ranges for chemical operational parameters in Appendix B.