 |
D.C. Municipal Regulations (Last Updated: September 13, 2017) |
 |
Title 25. FOOD OPERATIONS AND COMMUNITY HYGIENE FACILITIES |
|
SubTilte 25-C. SWIMMING POOL AND SPA REGULATIONS |
|
Chapter 25-C4. WATER QUALITY, CIRCULATION SYSTEMS, AND REPORTING REQUIREMENTS |
Section 25-C405. WATER QUALITY – TEST KITS
-
405.1Water 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.
405.2Water quality test kits shall be provided if the corresponding chemicals are used:
(a)Cyanuric acid;
(b)Sodium chloride;
(c)Quaternary ammonium;
(d)Ozone; and
(e)Copper.
405.3A single water quality test kit may be used for multiple pools, provided the pools have common ownership and they are located on contiguous property.
405.4A water quality test kit shall be capable of measuring disinfectant levels in the normal operating range.