D.C. Mun. Regs. tit. 25, r. 25-C405
Current through Register Vol. 71, No. 49, December 6, 2024
Water quality test kits such as colorimetric, titrimetric, turbidimetric, or electronic are required to be on the premises of all swimming pools and spa pools to determine free active chlorine and total chlorine using N,N-Diethyl-p-Phenylenediamine (DPD), or bromine level, total alkalinity, calcium hardness, and pH.
Water quality test kits shall be provided if the corresponding chemicals are used:
A single water quality test kit may be used for multiple pools, provided the pools have common ownership and they are located on contiguous property.
A water quality test kit shall be capable of measuring disinfectant levels in the normal operating range.
D.C. Mun. Regs. tit. 25, r. 25-C405